法界圖記叢髓錄 2.66

2.66

The *Great Record* states: "The true source of all dharmas" refers to the pratītyasamutpāda aspect; "the ultimate profound tenet" refers to the realization aspect. This is because this meaning of the ten Buddhas applies to both the realization and teaching aspects. If the ten Buddhas were only within the realization aspect, then the realization aspect would be the source of the teaching aspect; hence it says "true source." Furthermore, according to Xiuye's intention, the "true source" is wisdom, and the "profound tenet" is the object. Only the object seen by true wisdom can be called profound; hence it says "profound and difficult to understand."