釋禪波羅蜜次第法門 7.38

7.38

一者、有人云：「此阿那波那等十六法對四念處。」若約四念處而明，當知但在欲界、未到地乃至初禪則具足也，欲至上地，非為不得，但觀法式少不具足。如四禪，既無出入息及喜、樂等，若約息及喜、樂明念處，則不便也。上下類而可知。

First, someone says: "These sixteen practices, including ānāpāna, correspond to the four applications of mindfulness." If explained in terms of the four applications of mindfulness, one should know that they are fully present only in the desire realm, the anāgamya, and up to the first dhyāna. If one wishes to reach higher stages, it is not that one cannot, but the contemplation procedures are somewhat incomplete. For instance, in the fourth dhyāna, since there is neither in-and-out breathing nor joy and bliss, if one explains the applications of mindfulness in terms of the breath and joy and bliss, it would be inconvenient. The higher and lower can be understood by analogy.