Vritti (Sanskrit: वृत्ति), literally „whirlpool”, is a technical term in yoga meant to indicate that the contents of mental awareness are disturbances in the medium of consciousness. Vritti has also been translated as „waves” or „ripples” of disturbance upon the otherwise calm waters of the mind. The classical definition of yoga as stated in the Yoga Sutras is to calm the waves and return, or reunite (yoga = union) mind to its calm state, or samadhi.