宗鏡錄 96.38

96.38

那先經云。王問那先。何等為一其心者。那先言。諸善獨有一心最第一。一其心者。諸善皆隨之。那先言。譬若樓陛。當有所倚。諸善道者。皆著一心。

The Milindapañhasūtra says: 'The king asked Nāgasena: "What is it to unify one's citta?" Nāgasena said: "Among all goods, the one mind alone is foremost. When one unifies their citta, all goods follow along with it." Nāgasena said: "It is like a multi-storied pavilion, which must lean on something; all good paths rely on the one mind."'