Shadrasa - the Six Tastes
Rasa is the perception of taste by the tongue. We can perceive the taste of a something when it meets our tongue.
Every substance has a different physical and chemical composition; hence, there are so many different tastes present in the universe.
Ayurveda explains that different tastes are created by different combinations of the pancha mahabhutas (elements). Jala (water) and prithvi (earth) play a major role in the formation of rasa, and the other three mahabhutas (fire, air and space) help.