妙法蓮華經玄義 8.42

8.42

心含微發者，初剎那心，微微而有；次心若存若亡，次漸增長，後則決定，暢心而發口，是語微發。初心習行，行猶微弱，次少樹立，後成大行，即行微發。初觀心不見心理，更脩髣髴，乃至相似真實，即理微發。

As for the mind containing subtle emergence: the initial momentary mind subtly exists; the next mind is as if present, as if absent; next it gradually increases and grows; subsequently it becomes determinate, and giving free vent to the mind, it emerges from the mouth. This is the subtle emergence of speech. When the beginner practices, the practice is still subtle and weak; next it is slightly established; subsequently it becomes great practice. This is the subtle emergence of practice. Initially contemplating the mind, one does not see the principle of the mind; cultivating further, it is indistinctly seen, until resemblance and reality [are reached]. This is the subtle emergence of principle.