妙法蓮華經玄義 10.128

10.128

次約六法論開合者，即是四教，大乘六度、七覺分、八正道也。初開圓出別，乃至三藏，如是縮合，還一圓道（云云）。

Next, discussing opening and merging in terms of six dharmas: this refers to the four teachings, the six perfections of the great vehicle, the seven factors of awakening, and the eightfold noble path. Initially, one opens the perfect to bring forth the distinctive, down to the tripiṭaka; contracting and merging in this way, it returns to the one perfect path (and so forth).