Abhyasa (practice) is a dedicated, unswerving, constant, and vigilant search into a chosen subject pursued against all odds in the face of repeated failures, for indefinitely long periods of time.
B.K.S. IyengarThe yogi cannot be afraid to die, because he has brought life to every cell of his body. We are afraid to die, because we are afraid we have not lived. The yogi has lived.
B.K.S. Iyengar