When to Perform Vastu Poojan of the 45 Devtas
Vastu poojan is done not only at the start of construction but at several stages and family events; at griha arambh and griha pravesh it is essential.
What it does
Explains why the Vastu Purush is worshipped before construction or renovation and why the Vastu Purush mandala is studied.
When
Before construction, renovation or any work on the land
Cautions
Explanation and notes
Because he lies face down over the land, his body is mapped onto every plot as the Vastu Purush mandala, which is studied part by part, including his marma points.
Every house, however small, carries the Vastu Purush's eyes, nose, ears, hands, feet, heart, navel and other parts, including the marma and ati-marma (vital) points. A column, pit or stud on these points harms the occupants, just as a speck of dust in the eye or an injury to a vital organ harms the body.
In the Jain account, during the bhog bhoomi of the third era kalpavriksha trees granted every wish, until rising sin made them stop giving. Adi Prabhu then taught the six means of livelihood, asi, masi, krishi, vidya, vanijya and shilpa, and gave the complete knowledge of Vastu to his fourth son Vishwakarma.
Vastu knowledge passed by memory until it was written down in texts such as Samarangana Sutradhara, Mayamatam, the Skanda, Agni, Vayu and Garuda Puranas, Vishwakarma Prakash, Aparajita Prichha, Praman Manjari, Vastu Rajvallabh, Prasad Mandan, Vastu Mandan and Shilpa Ratna, each with its own focus.
Start with Vishwakarma Prakash, the simplest, available in Hindi with the Sanskrit shlokas and their meaning (translated by Krishna Kumar Jugnu of Udaipur). Then read Mayamatam, both parts of Samarangana Sutradhara, Manasara and Raj Vallabh.
Raj Vallabh states that a temple with a large river flowing to its South becomes not merely a tirth but a mahatirth, because for a temple the water element stands for peace. Rules made for homes must not be applied mechanically to temples.
Vastu results depend equally on four factors: dravya (the money used), kshetra (the land), kaal (the muhurta) and bhav (the feelings of the builders and residents). A perfectly planned house still fails if any one of them is wrong.
Before construction of a house or factory begins, the muhurta for the shilanyas or start of work is fixed from the rashi of the owner. If the Moon falls 4th, 8th or 12th from his rashi, money stays short however good the Vastu and the door.
At the shilanyas or bhoomi poojan of any house or factory the first tilak goes to the mason (shilpi), contractor or Vastu consultant, not the pandit, and they are given the best clothes and a shriphal (coconut). Their goodwill enters the building, while a craftsman's tears of hurt in the mortar act like a buried bone (shalya dosh).