首楞嚴義疏注經 2.3

2.3

爾時，阿難及諸大眾聞佛示誨，身心泰然，念無始來失却本心，妄認緣塵分別影事。今日開悟，如失乳兒忽遇慈母。

At that time, Ānanda and the great assembly, hearing the Buddha's instruction and admonition, were at ease in body and mind. They reflected that from beginningless time they had lost their fundamental mind, falsely taking the shadow-phenomena of conceptualization based on conditioned dusts [to be their self]. Having awakened today, they were like a nursing infant suddenly meeting its compassionate mother.