Three Ways to Bring Forth The Fruit of the Instructions. According to Pawo Tsuklak Trengwa, Dpa' bo chos 'byung, pp. 223 224, based on the Biography of Vairochana, they are to bring forth the harvest that is like the apple of the eye in order to clarify all samsara and nirvana, to bring forth the harvest that is like the heart because it is the essence of all vehicles, and to bring forth the harvest that is like life itself because it is the root of all things.