華嚴經探玄記 1.118

1.118

七同體相入義，謂前一緣所具多一，與彼一緣體無別故，名為同體。又由此一緣應多緣故，有此多一。所應多緣既相即相入，令此多一亦有即入也。先明相入，謂一緣有力能持多一，多一無力依彼一緣，是故一能攝多，多便入一。一入多攝，反上應知。餘義餘句，准前思之。

Seventh is the meaning of mutual entry within the same substance: the many onenesses possessed by the aforementioned single condition are not different in substance from that single condition, and are therefore named 'the same substance.' Moreover, because this single condition corresponds to many conditions, there are these many onenesses. Since the many conditions to which it corresponds are mutually identical and mutually entering, they cause these many onenesses also to have identity and entry. First, to clarify mutual entry: the single condition has power and can support the many onenesses; the many onenesses lack power and depend on that single condition. Therefore, the one can gather the many, and the many then enter into the one. That the one enters and the many gather should be understood by reversing the above. The remaining meanings and propositions are to be judged according to what was said before.