維摩經玄疏 5.134

5.134

答曰：轉迷成解。若離迷執，何處別有實慧之解！故知七識，非迷非解，得說迷解。解故，即是實慧解脫。

Answer: Delusion is transformed into understanding. If one is separated from delusion and grasping, where else could there be the understanding of real wisdom? Thus we know that the seventh consciousness is neither delusion nor understanding, yet can be said to be delusion and understanding. Because of understanding, it is precisely the liberation of real wisdom.