Dudjom Lingpa was a great meditation master, visionary and tertön (discoverer of secret teachings) of the Nyingma tradition of the Mantrayana. He also was a great dzogchen master, particularly in the aspect of refined perception or nang jang. Through the dream yoga, trance and visionary experiences, Dudjom Lingpa received direct transmissions from the wisdom mind of many of the lineage and Buddhist holders such as Sri Singha, Saraha, Vajradhara and Manjushri.