起信論疏筆削記 6.46

6.46

疏　問二門下，二、通難，二：今初、二門示義通局難。初句指定前義。何故下，引文正難。意云：真如既攝生滅門，何不同彼示三大？生滅既攝真如門，何不同彼示一大？示義既差，攝法須別；攝法若等，示義應同。如何攝法即同，示義却別耶？

[On the Commentary's] "Question: Below the two gates..." Second, resolving objections. There are two [parts]: now, first is the objection regarding the pervasion or restriction of the demonstrated meanings across the two gates. The first sentence specifies the preceding meaning. [On] "For what reason..." below, he quotes the text to raise the formal objection. The meaning is: Since tathatā subsumes the gate of arising and ceasing, why does it not, like that [other gate], demonstrate the three greatnesses? Since arising and ceasing subsumes the gate of tathatā, why does it not, like that [other gate], demonstrate the one greatness? If the demonstrated meanings are different, the subsumed phenomena must be distinct; if the subsumed phenomena are equal, the demonstrated meanings should be identical. How can it be that the subsumed phenomena are identical, yet the demonstrated meanings are different?