天台八教大意 1.36

1.36

次以圓解觀心，修行五悔，更加讀誦，善言妙義，與心相會，如膏助火。是時心觀益明，名第二品也。

Next, using the perfect understanding to contemplate the mind, one cultivates the five repentances and further adds reading and recitation: the good words and wondrous meanings accord with the mind, like oil assisting fire. At this time the mind-contemplation becomes increasingly bright; this is called the second grade.