The Gateway to Knowledge is a condensation of the Tripitaka and its accompanying commentaries. Consolidating the intent of Buddha Shakyamuni's teachings into a unified body of textbooks, it is the philosophical backbone of the living tradition of Tibetan Buddhism. Volume IV of this rich source book elucidates, The Four Seals of the Dharma, which are that all conditioned things are impermanent, everything defiling is suffering, nirvana is peace, and...