Vastu shastra is an ancient Indian system of architecture which focuses on design principles said to help harmonize the flow of energy in a building. It takes into account factors like directions, elements, colors and placements. The document discusses the principles of vastu related to the five elements - earth, water, fire, air and space. It provides guidelines on orienting different parts of a building like the kitchen, bedroom etc. in accordance with vastu. Scientific studies have found a correlation between homes designed as per vastu principles and the well-being of occupants.