首楞嚴義疏注經 8.104

8.104

由前寂照互相顯發，保持無退，妙用強勝，能感果德，因心中現，故云迴佛慈光。此寂照因決能感果，無有乖失，故云向佛安住。果中現因相，因中現果相，因果不二互現互入，故云妙影重重相入，名迴向心。

Because the preceding quiescence and illumination mutually reveal each other, preserved without retrogression, their wondrous function is robust and supreme, able to stimulate the fruition virtues to appear within the causal mind; hence it says 'turn back the Buddha's light of compassion.' This cause of quiescence and illumination is certain to evoke the fruition without discord or loss; hence it says 'dwell securely towards the Buddha.' The causal aspect appears within the fruition, and the fruition aspect appears within the cause; cause and fruition being non-dual, mutually appearing and entering one another: hence it says 'the wondrous images between them entering one another in layer upon layer; this is called the Mind of Dedication.'