"The relationship between the vajra master and the vajra student should be the most important relationship in one's life as a spiritual aspirant. This is the only relationship that we can have which ultimately leads to enlightenment. ... For a Vajrayana student it is more important than this one life."
p11, Dangerous Friend, Rig'dzin Dorje, Shambhala, 2001, 1-57062-857-2