The "Saṃdhinirmocana Sūtra", as the doctrinal trailblazer of the Yogācāra, inaugurated the paradigm of the Three Turnings of the Wheel of Dharma, with its own tenets in the "third turning". Yogācāra texts are generally considered part of the third turning along with the relevant sutra. (Some traditions categorize this teaching as within the "fourth turning" of the wheel of Dharma.) Moreover, Yogācāra discourse surveys and synthesizes all three turnings and considers itself as the final definitive explanation of Buddhism. The early layers of the "Yogācārabhūmi-śāstra" also contains very early Yogācāra material, perhaps earlier than the "Saṃdhinirmocana". This work is strongly influenced by Sarvāstivāda Abhidharma.