Vaastu Poojan

Vaastu worship ritual must be commenced 5 times for any building at the time of possession the land must be ploughed and some grains be sowed as well as some recommended plants be planted along with Vaastu poojan; again when foundation stone is laid Vaasru Purush is worshipped with 5 bricks, Acacia catechu wood nail, gold or silver snake, gold or silver tortoise and Navratna (nine gems) viz. Ruby, Pearl, Coral, Emerald, Yellow Sapphire, Diamond, Blue Sapphire, Hessonite and Cat's Eye; these items are then buried in foundation. There wood nail represents Meru i.e. axis of Earth, snake the geostatic forces, tortoise the balance of Earth and navratnas Sri Lakshmi the goddess of wealth and prosperity. 

Vaastu must be worshipped  on the occasions of installing first door, laying roof slab and finally while shifting to live in (grih pravesh); In Grih Pravesh one must enter the place after some little girl/ holy cow (Indian bovine) with a holy pitcher- Kalash and doorva (doob) grass while blessings from Vedas as mantras being chanted by priests, auspicious songs being  sung and conch as well as other auspicious music being played then do Vaastu Poojan. Afterwards some traditional sweet dish must be made in new kitchen and offered to main Hindu Gods and Goddesses along with family deity. In all above said Vaastu poojans Holy totems as OM and fiery cross- Swastika must be made on Pooja items and bricks/ doors.

All this is done so that the place will become auspicious.