釋禪波羅蜜次第法門 7.28

7.28

Furthermore, contemplating the emptiness of sentient beings is called contemplation; contemplating the emptiness of real dharmas is called turning back; contemplating equal emptiness is called purification. Furthermore, corresponding with the emptiness samādhi is called contemplation; corresponding with the signless samādhi is called turning back; corresponding with the wishless samādhi is called purification. Furthermore, all external contemplation is called contemplation; all internal contemplation is called turning back; all neither-internal-nor-external contemplation is called purification. Therefore, the wanderer Śreṇika said: 'It is not because of internal contemplation that this wisdom is attained; it is not because of external contemplation that this wisdom is attained; nor is it because of the absence of contemplation that this wisdom is attained.'