金剛經纂要刊定記 4.147

4.147

離遍計者。不執虛相為實，故《唯識》云：「圓成實於彼，常遠離前性。」真色身者。有兩意：一則以虛妄為虛妄，但如其事，不必取不生不滅以為真也。如以水月為水月，雖似而非真矣，故《華嚴》云：「於實見真實，不實見不實，如是解法相，是則名為佛。」二、謂相即無相同法身故，攝末歸本名真色身，即真善妙色也。故《涅槃》云：「吾今此身即是常身法身，金剛不壞之身。」

Regarding "free from the imagined": not grasping false marks as real. Hence the Vijñaptimātratā states, "The thoroughly established nature is, with respect to that, perpetually free from the former nature." Regarding the "true physical body": there are two meanings. First, taking the false as false, simply according with the fact, without necessarily grasping the unarisen and unceasing as true. Just as taking the moon in the water as the moon in the water, though resembling [the true], it is not true. Hence the Avataṃsaka Sūtra states, "Seeing the real in what is real, seeing the unreal in what is unreal; understanding the marks of dharmas like this is what is called a Buddha." Second, it means that marks are identical to marklessness and share the same dharmakāya; gathering the branch back to the root is called the true physical body, which is true, wholesome, wondrous form. Hence the Mahāparinirvāṇa Sūtra states, "My present body is indeed the eternal body, the dharmakāya, the adamantine indestructible body."