About Vastushastra

In ancient days, Lord Shankara had fought a war against devil, Andhakasura and had killed him. During this war the BHOOTA created out of the sweat of Lord Shankara,drunk and ate the flesh and blood of Andhakasura.
The BHOOTA was not able to tolerate his hunger and so he started eating the plants and animals on the earth. Then he targed towards God. All God's frightened, worshiped Lord Bhrama.

Lord Bhrama told them to turn the Bhoota upside and sit on him at different. Thus, 81 God's sat on their places and due to this Bhoota could not move and struggled due to hunger. Then BHOOTA prayed to Lord Bhrama about his hunger. Then Lord Bhrama gave him a boon and told him that from that day onwards, all mankind will worship you as a God of Vastu and the people will donate you some food.

In such Vastu, you will be responsible for the well being, happiness and prosperity of your worshipers. And in the Vastu where you will not be worshiped , you shall take away all the wealth, health and happiness from it.