Guru Rinpoche was a Teacher of Varjayana practitioners
Guru Rinpoche is an important deity, very important person in Tibet, to Varjayana practitioners generally and especially to those who have faith in Guru Rinpoche. There are strong karmic connections with Guru Rinpoche, [for] Tibetan people and Varjayana practitioners in general. But if people do not have common knowledge they cannot understand how important Guru Rinpoche is to Varjayana and Varjayana practitioners. Sometimes people do not have enough faith and devotion in [Guru] Rinpoche and do not see the importance of praying to Guru Rinpoche. That’s something I think a big mistake.
In fact, according to history, according to Buddha’s teachings, Varjayana system was established by Guru Rinpoche. Guru Rinpoche was a Teacher of Varjayana, and Teacher of all Varjayana practitioners.
Hungkar Dorje Rinpoche, “Devotion To Guru Rinpoche – Key To Siddhis”