 From this meditation master, he received the most secret and profound teachings of the Dzogchen tradition, instructions that are forbidden from being written down or transmitted to more than one student at a time.These teachings are known as Nyong-tri, which means “experiential instructions.” In this style of teaching, short, direct instructions are given one-on-one to a student, who then immediately puts them into practice in strict retreat.The next phase of instructions are only given once the student has encountered certain “signs” that show he or she has directly experienced the depth of the teachings.