The system of Vastu is an admixture of science, astronomy of astrology; it is covered with the influence of the sun, moonlight and heat, the earth’s atmosphere, wind direction, magnetic field and gravitation force on human beings. It gives practical guidelines on site selection, its contouring level, orientation of the building in relation to climatology and microweather, arrangements of areas/rooms in relation to the different activities of the proposed building. Their proportions as well as rituals for successive stages of house building.
Vastu also suggests the living condition in the house arrangements, and also plant & machinery layout in factory, business houses and also the placements of different activities, furniture layout, internal color scheme, the sitting and working arrangements, business administration, raw material and finished goods, arrangements for their storage, position of putting up boilers, furnaces, transformers, water storage and everything.
When travelling in an automobile and reaching towards destination. Now there are two factors, which will decide the journey, the vehicle and the road. The main cause of moving towards the destination is the car though road is equally important. So, in the same way, Vastu is like the road and vehicle is one’s karma. Even if one has a good vehicle but if road is not good, it will be difficult to reach the destination. Thus, Vastu facilitates to make the journey smooth.