法界次第初門 1.284

1.284

3. Knowing the long and short breath. One who cultivates the superior stages relies on contemplation to harmonize the mind. Once the mind is tranquil and subtle, illumination gradually becomes bright. If one attains coarse abiding, fine abiding, and the desire-realm concentration, the dark obstacles within concentration are thin, and one immediately perceives the characteristics of the in-breath and out-breath being long or short. Correlated with the bases of mindfulness, it still belongs to the contemplation of mindfulness of the body.