The Noble Mahāyāna Sūtra “The Exposition on the Universal Gateway”

In The Exposition on the Universal Gateway, the bodhisattva Amalagarbha arrives in this world from a distant pure land to request teachings from the buddha Śākyamuni. The Buddha proceeds to explain to all assembled bodhisattvas, monks, and lay devotees the manner in which the five aggregates are equal to meditative absorption. He also explains how the various classes of beings and all other phenomena are absorption as well. In conclusion, he lists the names of various absorptions and the benefits one obtains upon attaining these states.