成唯識論演祕 3.401

3.401

按彼論云：「心自在轉微細性者，謂色、無色二界諸色，如經說有平等心諸天，曾於人中如是如是資熏磨瑩其心，隨此修力住一毛端空量地處，展轉更互，不相妨礙。」

According to that Treatise: 'Regarding the subtle nature of the mind operating with sovereignty: it refers to the forms of the form and formless realms. As the sūtra says, there are devas of equal mind who formerly, when among humans, repeatedly perfumed and polished their minds in this manner, and by the power of this cultivation they dwell in a spatial extent the size of a single hair-tip, one within another, without obstructing each other.'