釋禪波羅蜜次第法門 7.13

7.13

Third, as for clarifying cultivation and realization: if we were to clarify the cultivation and realization of these six dharmas extensively, all dhyānas would be subsumed under the six subtle gates. Here we only take the essential principles of their sequential generation and entry into the path to clarify the characteristics of cultivation and realization of the six subtle [gates]. Now, in clarifying the cultivation and realization of the six subtle gates, they are unfolded into twelve gates. Why is this? Just as counting has two kinds: first, cultivating counting; second, corresponding with counting; down to cultivating purification and corresponding [with purification], it is also like this.