Everything in nature is made up of five basic elements: earth, water, fire, air, and space. Knowledge of the five elements allows the us to understand the laws of nature and to use yoga to attain greater health, power, knowledge, wisdom and happiness.
Get your elements balanced Earth, Fire, Air, Water, Ether (space)
Each of the five elements represents a state of matter in nature.
This arises out of deep intuition of how the universe operates. They also exist in Tantric and Chinese philosophy and Japanese Buddhism.