佛說觀佛三昧海經 4.5

4.5

佛告阿難：「眾生欲觀釋迦文佛肉髻光明，當作是觀，作是觀者，若心不利，夢中得見，雖是心想能除無量百千重罪。如是觀者，現身必見諸大菩薩，見菩薩故聞其說法，聞說法故得陀羅尼，其陀羅尼名旋憶持。如是觀者名為正觀，若異觀者名為邪觀。」

The Buddha told Ānanda: "If sentient beings wish to contemplate the light from Śākyamuni Buddha's uṣṇīṣa, they should make this contemplation. For one who makes this contemplation, even if their mind is dull, they will see it in dreams. Although it is a mental concept, it can eradicate immeasurable hundreds of thousands of heavy sins. One who contemplates like this will certainly see all the great bodhisattvas in their present life. Because they see the bodhisattvas, they will hear them expound the Dharma; because they hear the Dharma expounded, they will attain a dhāraṇī, and that dhāraṇī is called 'revolving memory retention.' Such contemplation is called right contemplation; if one contemplates otherwise, it is called wrong contemplation."