The Illusory Absorption Sutra
The Illusory Absorption (Skt. Māyopamasamādhi; Tib. སྒྱུ་མ་ལྟ་བུའི་ཏིང་ངེ་འཛིན།, Wyl. sgyu ma lta bu'i ting nge 'dzin) is found in the General Sutra section of the Tibetan Kangyur (Toh 130).
In this brief sutra the Buddha explains the meditative state known as the "illusory absorption". He summons two bodhisattvas, Avalokiteshvara and Mahasthamprapta, from the realm of Sukhavati, and recounts the story of how they first engendered bodhicitta.