yadyevaṃ kasmāt sphaṭikādāveva sā bhrāntir bhavati na kuḍyādāvityāha vicitrācintyaśaktiṣviti /
[To the question] "If this is so, why does this illusion occur only in crystal etc. and not in walls etc.?" he says "[in things] possessing diverse unthinkable powers."