It is important to understand that the Mahayana sutras are not meant to be literal records of actual sermons by the historical Shakyamuni Buddha. Nevertheless, they are recognized by Mahayana Buddhists as the “word” of the Buddha. This is because they conform to the “Three Seals or the Dharma.” The Three Seals of the Dharma refer to impermanence, selflessness, and the perfect peace of Nirvana. Traditionally, these three seals summarize the core insight of Shakyamuni Buddha. Any teaching that is consistent with them can be considered an authentic teaching of the Buddha.