The earth element is perceived by the sense of smell. Earth is the heaviest element. It gives the most possibilities for expression and can be shaped easily. Earth combines the characteristics and sensual qualities of all the elements and has an additional one: the smell. Among all the geometrical forms, the element earth is represented by the quadrangle. All rectangular and cubic structures in nature are a representation of earth. Its colour is brown. The element earth is assigned to the southwest and should be accentuated in this area with pieces of heavy furniture, earth like colours, and objects with right angles.