Wednesday, September 28, 2011

Lost Sarasvathi and the lost Vastu of king Bhojaraja.

The loot of India has been happening for long.
Many priceless
and antiquated items have been taken abroad.
One such item is the statue of Goddess Sarasvathi
that once belonged to Bhojshala in Madhya Pradesh.
It is presently housed in a Museum in London.
Dr Subramanian Swamy has said that he would file a case
in London court asking the British Museum
to return the statue of Goddess Sarasvathi to India.
Details on this effort and the details on the
current state of Bhojshala can be read in the link here:

The link below gives a crucial information
that this Bhojshala has been converted into a Mosque!
Read the other information given after
this news report and take a look at the pictures.
I have some information to share
which I have given after the pictures.

Swamy visits Bhojshala

PTI | 11:09 PM,Sep 25,2011
Dhar(MP), Sep 25 (PTI) Reviving the controversial Bhojshala issue, 
Janata Party President Subramanian Swamy 
today claimed 
the Shlokas in Sanskrit language were engraved at a place 
where idol of Waghdevi (Goddess Saraswati) 
was earlier installed in the sanctum-sanctorum.
"After visiting the Bhojshala and 
personally inspecting 
the place where the idol of Waghdevi was 
established by the Raja Bhoj, 
I found that shlokas in Sanskrit language 
were engraved at that place," 
he told a press conference.Swamy arrived here 
to visit the disputed Bhojshala where 
Hindus offer puja 
every Tuesday and Muslims offer Namaz every Friday 
as part of an arrangement made by the 
Archaeological Survey of India (ASI). 
Rest of the days it is opened for all.
He said he would file a petition in a London court 
where the idol is kept in a museum to bring it back 
to India like the idol of Natraj which he had 
claimed in a similar fashion.PTI CORR MAS RKC


The Bhojshala Temple in Dhar - built in the 11th century - 
and now used as a mosque and temple.
King Bhoja the Great who ruled between 1000 and 1055. 
Famed for his learning and love of Sanskrit, 
Bhoja was dedicated to Sarasvati, the goddess of knowledge. 
The city of Dhar was sacked by the Chalukyas and Solankis 
in the 12th century and the statue of Sarasvati was taken away 
to Gujarat where a temple was built for the goddess in 1271. 
The library of Dhar was also looted and manuscripts 
preserved in the Bhandars of western India. 

The mosque known as Raja Bhoj's school or the Bhoj Shala 

was built out of Hindu and Jain remains in the 
14th or 15th centuries: its name is derived from one of the slabs, 
covered with inscriptions giving rules of Sanskrit grammar, 
once used as a paving stone in the hall.

Bhoja Shala Colonade, [Dhar]

 Photograph taken in 1902. Photograph of a Mosque, at Dhar, 
Madhya Pradesh, taken by an unknown photographer in c.1902. 
Raja Bhoja was a famous 11th-century king of the Hindu Paramara dynasty 
which ruled Dhar between the 9th and 13th centuries. 
The Paramaras were known for their support for literature 
and during this period many Hindu and Jain scholars flourished
at the Paramara court and Dhar became a famous centre of learning. 
Legend states that King Bhoja founded a school which is referred 
to as the Bhojashala (or Bhoja's school). 
Dhar fell to the 
Delhi Sultanate under Alauddin Khalji in 1305 
and later became part of the province of the independent Sultans of Malwa. 
A mosque was built here in the 14th century using fragments of Hindu 
and Jain structures. This is a view of the internal court. 
The colonnade consists of carved pillars which appear to have Hindu origins.

Inner structure of Bhoja Shala, Dhar.

Entrance to Bhoja Shala, Dhar. See History of Dhar 
according to a Government website.

Sarasvati pratima in British Museum.


Let me continue.

Bhoj shala was built by King Bhoja raja.
This name is  familiar  for those in the know of 
old texts of Vastu sastra.
This king has authored a book called, "Samarangana Sutradhara
which contains rules of Vastu sastra.

On reading the news that the Bhojshala built by 
Bojaraja was converted into a mosque, 
the immediate thought that came in my mind was 
how that could have happened if the structure was built 
by one who framed the very rules of Vastu!

King Bhojaraja lived about 1000 years ago. 
He was said to have learned the 64 arts and so many other 
branches of knowledge. His book on Vastu 
seems to be a creation of his own mind or research 
as there are some deviations from previous books of his time 
such as Viswakarma Prakashika.

 In particular, Bhojaraj has given additional inputs on Aya Prakarana.  
Most old texts have given prime importance to Aya than to anything else. 
Today no one follows Aya and not many have knowledge of Aya.

But this concept of Aya was as old as Rig Vedas itself, according to me. 
The Aya mentioned in Rig Vedas is considered as Iron, but the context 
where this word appears always is related to lands or fields or some area. 
This makes me think that Rig Vedic Aya is 
not aya-iron, but the Aya of Vastu.

There is no exact term for Aya in English. 
Aya means Increase or income or yield from a place.
Today we look at the length and breadth dimensions 
of the plot or house for Vastu compliance.
But originally as per Vastu, there are some calculations
related to the area of the plot or house which determines 
whether the plot or house will be a source 
of Growth or increase of Aya.

There are a number of factors connected to Aya, 
such as whether the owner of the plot will live long or 
earn well or would have ever increasing happiness in the House.  
The life of the structure also is determined by Aya.

The Aya is a mathematical derivation and the different kinds of 
derivations show the Aya connected to 
different kinds of issues of Increase / Income / Aya.

The Aya is applicable to all areas, such as fields, houses, 
godowns, palaces or even wells which gives some yield.
The yield of fields was determined by 
Aya calculations based on which the king collected a  tax called Aya.
The same word appears in Tamil also, 
as Ayam (ஆயம்), aayath theervai (ஆயத் தீர்வை)
kanakkaayar (கணக்காயர்) etc.

The tax collectors of Aya, are mentioned

in the accounts of Magastenes.
The people of Indus valley civilization, 
who moved to Tamilnadu after the deluge at 
Dwaraka around 3500 years ago, continued 
their job as collectors of Aya. 
Ayy Andiran was a tax collector first 
who became the ruler later.

Now we will come to Bhojaraja.
He has handed over some concepts - 
which might have existed before him and 
revived by him - on Aya.
For example he has a calculation of Aya 
that is related to the birth star of the owner.
Yet another important calculation is related 
to the longevity of the place and the owner.

I am relating this to the longevity of the 

structure built by Bhojaraja.
The calculation is done like this.
> Calculate the Khetra phala (area) 
by multiplying the length and breadth of the 
proposed construction. 
> Multiply this area by 8
> Then divide the resultant by 120.
> The remainder is the Ayush or 

Longevity of the structure.
> This number must be divided by 8.
> If the remainder is zero, the structure 
will not last long. Zero as remainder means death.

King Bhojaraja must have calculated this and 
other issues of Aya when he built this structure.
It is possible to calculate the Ayush of the structure 
that now stands using the above method.
In all probability, I am sure the Ayush bala is there. 
Otherwise the structure would not have survived this long.

But the question is why did the structure slip into another's 
hand and ceased to be a School for which it was meant?
Why it got converted to a Mosque?

I think, the King could not have ensured 
all the principal norms when he built this structure,
For example, for a structure to last for over 1000 years, 
the inauguration muhurtha of the construction 
must have been done when one of the 3 planets, 
Venus, Jupiter or Saturn must have been in exaltation.
Here the lagna also is important.

Lagna as Pisces with exalted Venus in the lagna,
or lagna as Aries with exalted Jupiter in Cancer (4th house)
or lagna as Sagittarius with 2nd lord Saturn 
in exaltation in the 11th house
are recommended by old texts to ensure 
the structure to stand for more than 1000 years.
That the structure has stood up so long shows 
that Bhijaraja must have started the 
construction in any one of these combinations.

But if the 7th lord or the 10th lord of that Muhurtha 
goes to occupy a sign of enmity or
if the occupant of the 7th and 10th house at that time 
is a planet inimical to the lord of that house,
it is said that the structure would go out of hand!

Perhaps this could have been the condition 
when Bhojaraja started the construction of the 
The structure was captured by Muslims and 
converted into a Mosque.
The purpose of the structure, namely 

as an educational institution has been lost.

In those days, the image of 

Saraswathi and Ganesha 
used to be consecrated at the 
entrance of the school 
which the pupils would worship 
before entering the classes.
This information is found in the chronicles 
given by Dharampal in his book "Beautiful tree".

The standing posture of Goddess Saraswathi 

goes well 
with Bhojshala which was meant to be a school, 
may be along with a temple also.

The perfect shape of the courtyard 

and the mantap 
in the pictures above show the case of  
a perfect Aya,
for which Bhojaraja's Vastu book 
stands out unique. 
The structure has survived and his name 
also continues to be remembered.

Perhaps he could not have avoided a 
malefic connection in the start-up time 
Perhaps that led to the loss of structure 

to Mlecchas and loss o
f the most revered Goddess who is worshiped
for gaining knowledge.

These thoughts give us very poignant notions 

of our wonderful past.
What a nation, what a culture, what a tradition  

we have bequeathed!
Is it not right to ask all those who have taken 

the possessions of this country 
to return them and help us rebuild the 
wonderful institutions of the past?

Related post:

Tuesday, September 20, 2011

Why Modi refused to wear the Muslim Skull-cap – a very down-to-earth reason!!

Image make-over or image change-over – whatever you call it- the fact is that Modi was caught unawares when he was offered the skull cap by the Muslim clergy!

The reason is not what the English media is trying to invent and spread as a scoop, because it is as simple as what anyone with shining head will understand. 

The news item in the Hindustan Times clearly says that he did not want to wear the cap in front of the cameras. It says,
“Seeing the cap, Modi's expression changed like a flash and he gestured that he would not prefer wearing the cap under the gaze of cameras.”

When he did not have any qualms on wearing the turbans given by others in the glare of the cameras, what reason could be there for refusing the Muslim cap?

There is a reason. It is as common to you and me and to anyone standing in the glare of cameras.
To know what it is, take a look at the other headgears he wore.

You can see how these headgears neatly preserve his well combed hair but not as much as he would have liked it to. That is why you got a chance to see how he managed to tame back his hairstyle.

Caught by Piyush Patel in his camera, you see in the next 4 photos how managed to keep up his precious “Image”.

Ever wondered how Narendra Modi always maintains the perfect look on & off stage? With scores of cameras watching his every move at the kick-off ceremony of his 3-day fast at GU convention centre on Saturday morning, DNA lensman Piyush Patel captured on camera a small comb that Modi deftly held in his left hand to tidy his hair after removing a turban.

Now we know the purpose behind this gesture!

All the ruffled feathers are evened out!

And the image makeover is complete! The comb slips back into its place

Picture Courtesy:-

Imagine how he can do the same “Make-over” and not get noticed if he has to wear the Muslim Skull-cap!
A sample cap on how it grips the top of the head is shown below.

For a person like Modi having “not much” on his head like in this picture,

Picture courtesy:-

but having to do a “make over” to present a lush growth – that comes with little betrayals like in this photo below, (look at the top of his head which did not obey him in his "Make over" efforts)

how can anyone blame him for refusing to wear the skull cap in front of the cameras?

With a skull cap on his head, Modi will be in a terrible “Image –loss”. 

The secret that there is 'nothing' in his ‘head’ will be flashed across all the homes through the TV when he takes out the small but gripping skull cap.

Why should he risk it?
I think by now Modi would have conveyed his ‘dilemma’ to the Maulana.

Isn't it the turn of the Modi- baiters to cover their empty ‘heads' now?  

Sikkim earthquake.

It is not happy news when you hear the predictions for bad times happen. However such news is keenly awaited to make sure that our understanding and analysis of astrology is correct. It happened with what I wrote a few days ago in the article titled  

Solar flares again!

In connection with that, I want to give some more information.
On the astrological factors for identifying terror attacks, I have given the basics in this article.

Astrological views on Mumbai blasts (July 13, 2011)

In the immediate future, Kazab - type worst kind of terror attack is not likely to happen. By this I mean that terror time combinations do exist at present by some minimal way. 

The days to be careful are Sep 30th, Oct 1st and Oct 2nd. (West of India is vulnerable. Mumbai, Pune and Gujarat must remain vigilant) 

Again on 6th, 7th and 8th of October, skirmishes in South India – not exactly terror strikes - are likely.
On the earthquake side, the occurrence of the average 6.8 magnitude had caused heavy casualties because of the terrain where it occurred. Geologists have expected many after- shocks but that did not materialize. It would not, when the earthquake happens on shashti thithi. 

Read my old article on parameters for predicting earthquakes in

Based on the inputs from that research I would say that no immediate danger to the same place  (Sikkim) is seen in the near future. However starting from 30th September to 2nd October, when Moon will be passing through Scorpio, some other section of North India in the west of the present site of earthquake is likely. 

But the worst kind of earthquakes – something like a season of earthquakes is possible in the 2nd half of 2012. At that time the western part of the Pacific Ring of Fire will be under focus.  The current transit of the nodes and Saturn’s aspect to Aries and Cancer after it moves to Libra would not leave the earth rattle -free. When Rahu and Ketu are transiting or aspecting the Martian signs of Aries and Scorpio, the earth cannot remain quiet.


Sikkim earthquake unusual, say geologists

BANGALORE: The earthquake that rocked Sikkim Sunday is unusual in terms of its magnitude and nature of origin, say leading geologists.

"There is nothing surprising in this earthquake as the region north of Sikkim, which forms the outliers of Tibetan tectonics, is known for moderate earthquakes in the past," C.P. Rajendran at the Indian Institute of Science here told IANS.

But what makes it different is its "unusually greater magnitude".

These earthquakes are different in the sense they are along the somewhat north-south structures trending transverse to the east-west Himalayan axis, Rajendran said. They are different from the usual Himalayan thrust earthquakes that are caused by the collision of the Indian plate with the Eurasian plate.

Vineet Gahaulat at the National Geophysical Research Institute (NGRI) in Hyderabad said: "The (Sikkim) earthquake highlights the presence of the role of transverse features in the Himalayas."

"This 6.9 magnitude earthquake possibly occurred on a northwest-southeast trending almost vertical fault through strike slip motion."

"This is what we generally do not expect in the Himalayas," Gahaulat said. "We expect large magnitude earthquakes on the detachment having thrust motion on gently dipping planes - like the 1999 Chamoli and 1991 Uttarkashi earthquakes."

Gahaulat said the role of transverse features in segmenting the Himalayan arc and accommodating some of the convergence of the India-Eurasia plates have been talked about earlier.

"But this one (Sikkim quake) makes it clearer as this is possibly the largest magnitude earthquake of this type in the Himalayas."

Gahaulat is also surprised at the fewer number of aftershocks - only two to three aftershocks of magnitude greater than 4.5. "So where are all the aftershocks gone? Are they yet to occur in the following days," he asked.

According to Gahaulat, "we need to be careful" if, in the coming days, the aftershocks occur southeast of the main shock epicentre - the way two aftershocks have occurred.

"The region where the main shock occurred has very low population density, but further southeast, population density is higher," he cautioned.

"The occurrence of this earthquake does not lower down the threat from the great earthquake which we expect in the Himalayas," the NGRI scientist warned.

The one (or more) which is expected will be a thrust type earthquake on the detachment which will be much more devastating than this one, he said.

"We need to treat each and every earthquake in a special way, you just need to turn it around and it will tell a somewhat different story."

Rajendran, however, does not think this particular event in Sikkim can be treated as a precursory signal to any major earthquake that may occur in future along the Himalayan arc.

"Having said that, the fact remains that some historically earthquake-deficient parts of the Himalayas has the potential to generate large earthquakes any time, irrespective of the present earthquake," he cautioned

Monday, September 19, 2011

The world of Pithrus.

Given below is my article published in Purattaasi issue of Poojari Murasu, a Tamil monthly circulated among temple priests of Tamilnadu. 

The article focuses on the importance of the Month of Purattasi (when Sun transits Virgo) for offer of oblations to departed souls. I have written this idea in old posts on Pithru loka. Let me give a brief account of it here.

In the following diagram, the view of one side of the Milky Way galaxy is given. The centre of the galaxy is in Sagittarius while the outer edge of the galaxy is in Gemini. Our location is indicated close to Cancer.

The axis of the earth points to North and the South. The constellation of Virgo is in the southern direction. The 2 paths namely Devayana (the path of the elevated souls who are not born again) and the Pithruyana ( the path of souls / pithrus who will be reborn again) are shown in this picture.

The Pithruyana is pointing towards Virgo. In reality, Virgo is the centre for many groups of stars. To put in other words, the sequence goes like this. The earth born of the Sun moves around the Sun. The Sun born out of a core moves around that along with sister groups of stars. These sister groups move around Virgo cluster showing that they were formed from this Virgo cluster. Thus Virgo is a core from which our current existence has sprung. It is therefore relevant to think that our existence will go back to that.  When the sun comes in front of that Virgo, we think of the departed elders and offer oblations. I have written before on why and how these oblations reach them as a 3- some energy. 

The link to one such article in Tamil :-

The link to some articles in English :

 The rationale behind oblations done to the departed ancestors.

Do oblations reach the departed soul, if the soul has taken re-birth?


The pithu mana is about the time scale in the worlds that Pithrus reside.
It is as follows:-

Waxing phase =  Waning phase = 1 paksha = 15 thithi
2 paksha = 1 day for pithru  (equivalent to one round of Moon around the zodiac )
30 days of Pithru (60 paksha) = 1 month for Pithrus
12 Pithru month (720 paksha) = 1 year for Pithrus

This can be rewritten as follows:

1 pithru year  = (720 paksha X  15 thithi) = 10,800 thithi.
There are 360 thithi in one year if Moon’s round. (Chandra mana varusham)
Therefore 10,800 thithi / 360 thithi  = 30 years.
1 Pithru Year = 30 Chandramana years.

The Pithru day starts on the 8th lunar day (Astami) of waning moon. Their Noon occurs on the No moon day (Amavasya). Their day ends on the 8th lunar day of the Waxing moon.
The Monthly Amavasya tarpana is done at Noon time of Pithru day. 

பித்ருக்களது உலகம்.

புரட்டாசி மாதம் பித்ருக்களுக்கு சிரார்த்தம் செய்வதற்குப் பெயர் போனது. மஹாளய அமாவசைக்கு முன் வரும் தேய் பிறைக் காலத்தைப்பித்ரு பக்ஷம்என்று அழைப்பார்கள். அதன் முக்கியத்துவத்தைப் பற்றிச் சொல்லும் புராணக் கதைகள், தர்ம சாஸ்திர நூல்கள் பல இருக்கின்றன. வானவியல் ரீதியில் அதன் முக்கியத்துவத்தைப் பற்றிச் சொல்வதே இந்தக் கட்டுரையின் நோக்கமாகும்

புரட்டாசி மாதத்தில் சூரியன் கன்னி ராசியில் சஞ்சரிக்கிறான். அதாவது இந்த மாதத்தில் நாம் சூரியனைப் பார்க்கும் இடத்தில் கன்னி ராசி இருக்கும். கன்னி ராசிக்கு ஒரு முக்கியத்துவம் உண்டு. நாமிருக்கும் சூரிய மண்டலமும், நம்மைச் சுற்றியுள்ள பிற நக்ஷத்திர மண்டலங்களும் கன்னி ராசியை மையமாகக் கொண்டு சுற்றி வருகின்றன

நாமிருக்கும் பூமி சூரியனைச் சுற்றி வருகிறது. நம்மையும் சேர்த்து சூரிய மண்டலம், நம் பக்கத்தில் உள்ள சில நக்ஷத்திரக் கூட்டங்களுடன் ஒரு மையத்தைச் சுற்றி வருகிறது. அந்த மையத்தைப் போல பல சிறு மையங்கள் ஒருங்கிணைந்து கன்னி ராசியை மையமாக வைத்துச் சுற்றி வருகின்றன. இந்தச் சுழற்சி வரை விஞ்ஞானிகள் கண்டு பிடுத்துள்ளனர்

பொதுவாகவே மையம் என்பது ஒரு ஆதாரமாகச் செயல்படுகிறது. பூமிக்கு மையம் சூரியன். அதுவே பூமிக்கு ஆதாரம் ஆகும். எப்படி என்றால், அந்தச் சூரியனிலிருந்துதான் பூமி முதலான கிரகங்கள் உண்டாகின. அந்தச் சூரியன் தரும் சக்தியால்தான் பூமியில் உயிர்கள் நிலை பெற்று இருக்கின்றன. இந்தக் கருத்து, படிப்படியாக ஒவ்வொரு மையத்துக்கும் பொருந்தும். அப்படிப் பார்க்கும் பொழுது கன்னி ராசி என்னும் மண்டலமே நமக்கு ஆதாரமாகிறது. எப்படி பூமியானது சூரியனிலிருந்து உண்டாகி, சூரியனால் வாழ்விக்கப்படுகிறதோ, அப்படியே, நாமிருக்கும் மண்டலம், கன்னி ராசியிலிருந்து உண்டாகி அதனால் வாழ்விக்கப்படுகிறது என்று சொல்வது பொருந்தும்.

ஒரு மையத்திலிருந்து உண்டானது, பிரளய காலத்தின் போது, படிப்படியாக, அந்த மையத்துக்குள் ஒடுங்கும். நாமிருக்கும் பூமி சூரியனில் ஒடுங்கும், சூரிய மண்டலம் அதற்கடுத்த மையத்தில் ஒடுங்கும். அந்த மையம் கன்னி ராசியில் ஒடுங்கும்.

மனித வாழ்க்கையை எடுத்துக் கொண்டால், உடலை விட்டுப் பிரிந்த உயிர், இந்தக் கன்னி ராசி இருக்கும் மண்டலத்தில் ஒடுங்குகிறது என்று சொல்வது பொருத்தமாக இருக்கும். எனவேதான், கன்னி ராசி இருக்கும் மண்டலத்தைப்பித்ரு யானம்” (பித்ருக்களின் வழி) என்பார்கள்

இந்தக் கன்னி ராசி தென் திசையில் இருக்கிறது. இங்கு ஒரு கேள்வி எழலாம். பூமியில்தான் தெற்கு வடக்கு போன்ற திசைகள் இருக்கின்றன. பூமிக்கு வெளியே சென்றுவிட்டால் ஏது திசை? முடிவே இல்லாத பிரபஞ்சத்துக்கு ஏது திசை?

இதை கண்டு பிடிக்க ஒரு வழி இருக்கிறது. துருவ நக்ஷத்திரம் தெரியும் வட துருவப் பகுதி வடக்காகும். அதற்கு நேர் எதிரே இருக்கும் துருவப் பகுதி தெற்காகும். இந்த இரண்டு துருவங்களையும் இணக்கும் ஒரு கற்பனைக் கோடு பூமியின் அச்சு எனப்படும். பூமிக்கு வெளியிலிருந்து பார்த்தாலும் இந்த அச்சை அடையாளம் கண்டு, எது வடக்கு, எது தெற்கு என்று சொல்ல முடியும். இங்குதாம் ஒரு அதிசய ஒற்றுமை இருக்கிறது

கன்னி ராசியானது , பூமியின் தென் துருவத்துக்குக் கீழ தென்படுகிறது. அதாவது அந்த ராசி தெற்குத் திசையில் இருக்கிறது. அந்தத் திசையை நோக்கிப் பித்ரு காரியம் செய்ய வேண்டும் என்னும் வழக்கம் உண்டானதற்கு இதுவே காரணம் என்று தெரிகிறது. நாம் உண்டான மையம் தெற்குத் திசையில், கன்னி ராசியில் இருக்கவே, இறந்த பிறகு அந்தத் திசையில் உள்ள மண்டலத்தில், நமது பித்ருக்கள் வாழ்கிறார்கள். எனவே அந்தத்  திசையை நோக்கிப் பித்ரு காரியம் செய்கிறோம். அந்தத் திசையில் சூரியன் சஞ்சரிக்கும் போது விசேஷமாகவே பித்ரு காரியம் செய்கிறோம்

இதை அடுத்து ஒரு கேள்வி எழலாம். இறந்தவர்களது திதியன்று சிரார்தம் செய்கிறோம், அது அந்த ஒரு திதியில் மட்டுமே செய்யப்படுகிறது. அப்படி இருக்க இந்த பித்ரு பக்ஷம் என்பது 15 நாட்கள் கொண்ட தேய்பிறை காலம் முழுவதும் செய்யப்படுவது ஏன்? இதைத் தெரிந்து கொள்ள வேண்டுமென்றால், நாம் பித்ருக்களது காலக்கணக்கைப் பார்க்க வேண்டும்

சூரியனை முன்னிட்டு சௌரமானம் என்று சூரிய வருடம் இருப்பது போல, சந்திரனை முன்னிட்டு சந்திரமானம் என்னும் சந்திர வருடம் இருப்பது போல, பித்ருக்களுக்கு பித்ருமானம் என்னும் பித்ரு வருடம் இருக்கிறது. அது சந்திரனை முன்னிட்டுச் சொல்லும் திதிக்களின் அடிப்படையில் அமைந்துள்ளது.

அதைப் பின் வருமாறு விளக்கலாம்.

வளர் பிறை = தேய் பிறை = 1 பக்ஷம் = 15 திதி
2 பக்ஷம் = 1 பித்ரு நாள் (நமக்கு இது ஒரு சந்திர மாதம்)
30 பித்ரு நாள் (60 பக்ஷம்) = 1 பித்ரு மாதம்.
12 பித்ரு மாதம் (720 பக்ஷம்) = 1 பித்ரு வருடம்.
இதைத் திதியாக மாற்றினால்,
1 பித்ரு வருடம் = (720 பக்ஷம் X  15 திதி) = 10,800 திதி.
1 சந்திர வருடத்தில் 360 திதிக்கள் இருக்கவே,
10,800 திதி / 360 திதி = 30 வருடம்

அதாவது நம்முடைய சந்திரமானக் கணக்கில் 30 வருடம் என்பது பித்ருக்களுக்கு ஒரு வருடம் என்பதாகும்.

ஒருவன் 30 வருட காலம் தன் பித்ருவுக்குச் சிரார்த்தம் செய்தால், பித்ருவின் வாழ்நாளில் ஒரு வருடத்துக்கு மட்டுமே அந்த சிரார்த்தம் கிடைத்தது என்றாகும். அவ்வளவு காலக்கட்டம் ஒருவர் சிரார்த்தம் செய்யும்படி அமைவது மிகவும் அபூர்வம். அதனால், பித்ரு உலகமான கன்னி ராசி இருக்கும் மண்டலத்துடன் சூரியன் இணையும் புரட்டாசி மாதத்தில் ஒரு முழு பக்ஷத்தையும் பித்ருக்களுக்கு வழிபாடு செய்வதற்கு ஒதுக்கியுள்ளார்கள்.

தேய்பிறையை ஏன் தேர்ந்தெடுத்தார்கள் என்றால், அதுதான் பிருக்களது பகல் காலம். அவர்கள் விழித்திருக்கும் அந்தக் காலக்கட்டத்தில் புரட்டாசி மாத பித்ரு பக்ஷத்தில் அவர்கள் உலகை நோக்கி நாம் அவர்களை வழிபடுகிறோம். இந்த பக்ஷத்தில் நாம் செய்யும் வழிபாடு, சிரார்த்தம் செய்யப்படாத அனைத்து பித்ருக்களையும் சென்றடைகிறது. இவ்வாறு அனைத்து ஜீவர்களையும் அரவணைக்கும் பாங்கு நம் முன்னோர்களால் நமக்குத் தரப்பட்டிருக்கிறது. அது மட்டுமல்ல. ஒரு நாணயத்தின் இரண்டு பக்கங்களைப் போல விஞ்ஞானத்தையும், மெய்ஞ்ஞானத்தையும் ஒருங்கிணைத்து அதன் மூலம் மக்கள் சமுதாயத்துக்கு உயர்ந்த பலன்களையும் தரும் பாங்கு நம் இந்து மதத்துக்கு மட்டுமே உரியது.