說無垢稱經疏 4.368

4.368

贊曰：此三等持行。見有眾生，不能化度。度之不堅，觀我如空，故能常化。故以化相而引發空。有為有相，亂擾心神。為對治此，引修無相。舊云「不捨有為」，與此相返。菩薩恒於欲色二界隨類化生，名故作意受生行相。引發無願，本不願求三界受生，名故作意。

Commentary: These are the practices of the three samādhis. Perceiving existing sentient beings, one cannot transform and deliver them, or one's delivering them is not steadfast; contemplating oneself as empty, one can constantly transform them. Therefore, through the mark of transformation, one brings forth emptiness (śūnyatā). Conditioned dharmas possess marks, which agitate and disturb the mind and spirit. To counteract this, one brings forth the cultivation of the signless (animitta). The older translation says "not abandoning the conditioned", which is opposite to this. The bodhisattva constantly takes intentional rebirth according to categories in the realms of desire and form, which is called the mental aspect of taking rebirth through deliberate intention. This brings forth the wishless; originally not desiring rebirth in the three realms is called "deliberate intention".