Fengshui is a philosophy of harmonizing oneself with our surroundings. It is based on an invisible force that binds various elements of nature like earth, water, universe and humanity. The force is called 'Qi'. Adopting Fengshui practices leads to harmony in the house or business environment and removes evil forces.
Similarly Vastu is an ancient Hindu architectural form which deals with geometrical patterns (Yantras), symmetry, space arrangement and directional sapects.