大方廣佛華嚴經隨疏演義鈔 18.66

18.66

疏「故下經」下引證，即〈問明品〉佛境甚深中答佛境入文。然彼中意，入有二義：一者色身入、二者智身入，今取智入。身入可見，智入唯智智能知故，故云非彼所能見。

On the Commentary's "Therefore the sūtra below..." and so forth: this cites proof, namely, the text answering the entrance into the Buddha's realm within "The Buddha's Realm is Extremely Profound" in the "Clarifying Questions" Chapter. However, regarding the meaning there, entrance has two senses: first, the entrance of the physical body; second, the entrance of the wisdom-body. Here, the entrance of wisdom is taken. The entrance of the body can be seen; the entrance of wisdom can only be known by wisdom-cognition, and thus it says, "it is not what they can see."