大乘起信論裂網疏 3.36

3.36

"Untaintedness" refers to the meaning of enlightenment. "Ignorance" refers to the meaning of non-enlightenment. "Various illusory functions" refers both to the inconceivable functions arisen based on untainted wisdom and the three marks and six marks arisen based on ignorance. "All share the mark of the true" means that they are all formed by tathatā being immutable yet according with conditions. Therefore, according with conditions yet immutable, every single one without exception is entirely tathatā, just as when clay is made into earthenware vessels, there is not a single vessel that is not entirely clay.