The most widely held misconception about Vastu is that you should have complete faith in it to reap its amazing benefits. The fact, however, is that Vastu is a completely scientific discipline. Like other sciences, the outcomes of Vastu techniques are not affected by your lack/absence or faith in them.
Since time immemorial, man has been conscious of the tremendous influence that Nature and Earth exert in shaping his life. That is why, in all the civilizations, both are referred to as ‘Mother’. Since man basically has an inquisitive and scientific temperament, he developed through meditation, intuition and systematic observations, an understanding of the energies associated with the Earth. The directions of their flow and how these Earth energies influence him have been codified into knowledge bases and, on the basis of this knowledge, he developed the science of Vastu—the science of planning buildings of all kinds.
The sole aim of Vastu is to help a building materially achieve the purpose for which it has been built. Clearly, Vastu is concerned with the flow of Earth energies, which does not necessarily require our faith. It works with the right placements of the appropriate things/locations!