佛說觀佛三昧海經 10.27

10.27

The Buddha said to Ānanda: “If this buddhānusmṛti-samādhi is to be accomplished, there are five causes and conditions. What are the five? First, maintaining the precepts without violating them. Second, not giving rise to wrong views. Third, not generating conceit. Fourth, not bearing hatred or jealousy. Fifth, exerting vigorous and courageous diligence as if putting out a fire on one's head. Practicing these five things, one correctly contemplates the wondrous rūpakāyas of the Buddhas, causing the mind not to retrogress. One must also recite the Mahāyāna scriptures. By virtue of this merit and the power of buddhānusmṛti, one will swiftly come to see immeasurable Buddhas.