Contrary to many popular beliefs, Vastu is in fact a logical explanation of scientific truths and facts. Vastu Shastra is based upon the magnetic property of the Earth, the gravitational and magnetic forces created by the materials inside it, the rotation of the Earth on its axis along with centrifugal and other forces created by its movements.
Vastu principles are related to the natural energies of Earth. The claim that the sources of energies should be open and undisturbed. Vastu Shastra prescribes desirable characteristics for sites and buildings based on the flow of energy (known as ‘Prana’ in Sanskrit). Many of these rules are attributed to the cosmological considerations – the Sun’s path, the rotation of the Earth, its magnetic field, etc. For example, the morning Sun is considered especially beneficial and purifying. Hence the East is a treasured direction