維摩經玄疏 2.34

2.34

第二、釋三觀名者，三觀之名，出《瓔珞經》云「從假入空，名二諦觀；從空入假，名平等觀，是二觀為方便道。因是二空觀，得入中道第一義諦觀，雙照二諦，心心寂滅，自然流入薩婆若海」也。

Second, explaining the names of the three contemplations: the names of the three contemplations come from the Yingluo jing, which states: "Entering emptiness from the provisional is called the contemplation of the two truths; entering the provisional from emptiness is called the contemplation of equality. These two contemplations are the path of expedient means. By relying on these two contemplations of emptiness, one can enter the contemplation of the Middle Way paramārtha-satya, dual-illuminating the two truths, mind after mind quiescing, naturally flowing into the ocean of sarvajñā."