維摩經玄疏 2.125

2.125

次明須知通塞者，隨所破法，從淺至深，皆有道、滅之通，苦、集之塞；若迷此理，即不知得、失；是字、非字，去、取失宜也。

Next, explaining that one must know the open and the obstructed: in accord with whatever dharmas are broken through, from shallow to deep, all have the openness of the path and cessation, and the obstruction of suffering and accumulation; if one is confused about this principle, one will not know gain and loss, what is correct and what is not, and discarding and adopting will lose their propriety.