釋禪波羅蜜次第法門 4.25

4.25

一、沈昏闇蔽障者，行者於修定欲用心之時，即便沈昏闇睡，無記瞪矒，無所別知，障諸禪定，不得開發，是為沈昏闇蔽障發之相。

First, regarding the obstacle of sunken, dark obscurity: When a practitioner is cultivating concentration and wishes to apply the mind, they immediately become sunken, dark, and drowsy, indeterminate, staring blankly, without discernment or awareness, obstructing the various dhyāna-concentrations so that they cannot unfold. This is the mark of the manifestation of the obstacle of sunken, dark obscurity.