Pabongkhapa feared a decline of Gelug monasteries, and induced a revival movement, which promoted the Gelug as the only pure tradition. He regarded the practice of non-Gelug teachings by Gelug monks as a threat to the Gelug tradition, and opposed the influence of the other schools, especially the Nyingma. He coupled Dorje Shugden to Gelug exclusivism, using it against other traditions, and against Gelugpa's with eclectic tendencies. The main function of the deity was presented as "the protection of the Ge-luk tradition through violent means, even including the killing of its enemies."