シュクデン
In the 1930s, Pabongkhapa Déchen Nyingpo, who favoured an "exclusive" stance, started to promote Shugden as a major protector of the Gelug school, who harms any Gelug practitioner who blends his practice with non-Gelug practices. The conflict reappeared with the publication of the "Yellow Book" in 1976, containing stories about wrathful acts of "Dorje Shugden" against Gelugpas who also practiced Nyingma teachings. In response, the 14th Dalai Lama, a Gelugpa himself and advocate of an "inclusive" approach to the teachings of Tibetan Buddhism, started to speak out against the practice of Dorje Shugden in 1978.