釋禪波羅蜜次第法門 6.86

6.86

答曰：佛法不可思議，隨眾生應度者如是說。復次，從慈定起，入三禪易；從悲定起，向虛空處易；從喜定起，入識處易；捨定起，入無所有處易。

Answer: The Buddha Dharma is inconceivable, and is taught in this manner according to those sentient beings who are to be saved. Furthermore, emerging from the absorption of benevolence, it is easy to enter the third dhyāna; emerging from the absorption of compassion, it is easy to proceed to the station of space; emerging from the absorption of sympathetic joy, it is easy to enter the station of consciousness; emerging from the absorption of equanimity, it is easy to enter the station of nothingness.