Vastu -Shastra is a Vast and ancient science of living. The word Vastu is derived from the root ‘Vas’ which means ‘to reside’. It is not an equivalent of the word architecture. Vastu is architecture and much more. While architecture is the science, art or profession of designing and constructing buildings etc., the definition of Vastu extend into the realm of occultism. Vastu Shastra, the edifice science of Bhawan Sthapatya Kala, being the applied aspects of ATHARVAVEDA, is an ancient science and one of the eminent features of Indian heritage. Building a house in ancient India was not only a house-craft but also a sacred ceremony and the house was considered a living organism. The spirit of the house was called the Vastu Purusha and different cardinal directions and sectors were assigned to different Gods like Brahma, Ishwara, Agni, Varun, Wind, Yam and Demon, since the waves flowing in a particular direction have a specific influence. Eshan or north east is presided over by God and is therefore suitable for a prayer room. The south-east belongs to Agni. The central space is Brahma’s and should be left open to the heavens. The head and limbs of the Vastu Purusha are to be left alone too.