法界次第初門 2.151

2.151

一、已生惡法為除斷，一心勤精進。四念處觀時，若懈怠心起，五蓋等諸煩惱覆心，離信等五種善根時，如是等惡若已生，為斷故，一心勤精進，方便除斷令盡也。

First, dedicated diligence with single-mindedness in abandoning unwholesome states that have already arisen. At the time of contemplating the four bases of mindfulness, if a mind of laxity arises, the defilements such as the five hindrances cover the mind, and one is separated from the five wholesome roots such as faith, when such unwholesome states have already arisen, one diligently exerts oneself with single-mindedness in order to abandon them, skillfully eliminating and abandoning them so that they are brought to an end.