Tibetan tradition accepts the common Mahayana view that Sakyamuni Buddha (the historical Buddha) taught various kinds of teachings that do not seem to agree—hence the various discrepancies between nikaya Buddhism and the Mahayana scriptures—and following the Sandhinirmocana Sutra, hold that the Buddha taught three grand cycles called "Turnings of the Wheel of Dharma."
These wisdom sutras were taken by Maitreya and Asaṅga as the starting point for their encyclopaedic work, the Ornament of clear realizations (Abhisamayālaṃkāra) in which they emphasised the hidden meanings of the sutras.