大般涅槃經集解 18.227

18.227

案僧亮曰：今日之說也，明先時之解。重惑暫迷，昔緣潛發，譬影現於外也。僧宗曰：雖復失解，而理不亡。當時雖復為惑所隱，然其一念之力必牽極果。冥相感召，不得相無，如珠雖在皮裹而影顯於外也。

Sengliang comments: Today's discourse clarifies his former understanding. When severe delusion temporarily confounds him, former conditions secretly unfold; this is compared to its reflection appearing on the outside. Sengzong comments: Although he lost understanding again, the principle did not perish. Even though at that time it was concealed by delusion, the power of a single thought inevitably draws forth the ultimate fruit. Imperceptible resonance and summoning cannot fail each other, just as although the jewel is enclosed within the skin, its reflection is revealed on the outside.