In our bodies, as in nature, these 5 elements co-exist in a way that is by and large harmonious and where no one element dominates another perpetually. For this harmony to exist, there has to be a force that manages a relationship between the elements of nature. In paired relationships, the forces guiding them are called the Doshas.
The Doshas represent the “subtle energy” that combines and balances the characteristics of the two elements it influences. This force has to often combine and balance seemingly contrary forces such as Fire and Water under Pitta. Vata manages the relationship between air and space while Kapha brings water and earth together.
In addition to our bodies, everything around us has these Doshas; plants, pets, fruits, vegetables can all be classified using the same principle.
In our bodies Vata is the force behind movement; hence anything that moves or helps create movement is the responsibility of Vata.
Pitta is responsible for digestion and metabolism; taking the food we eat and transforming it into their most basic form for absorption by the entire body as nutrients.
Kapha is responsible for the fluids that act as the lubrication for movement of the joints, as the glue that helps hold things together, as the canals to transport nutrients in and toxins out.