rasa [ ruhs-uh ] noun: (in Hindu aesthetics) flavor, sentiment, or emotion: regarded as one of the fundamental qualities of classical music, dance, and poetry.

In Indian aesthetics, a rasa (Sanskrit: रस) literally means "juice, essence or taste". It is a concept in Indian arts denoting the aesthetic flavour of any visual, literary or musical work that evokes an indescribable feeling in the reader or audience.