大般涅槃經義記 5.235

5.235

次明自在，「菩薩入是三昧王已得自在地」牒前生後正顯其得。下辯其相，依如《地經》，自在有十：一命自在，隨意任持；二心自在，無量三昧自在趣入；三物自在，無量淨土隨意示現；四業自在，現生後時隨意住時；五生自，在一切世界隨意現生；六願自在，一切時處隨意成佛；七信解自在，一切世界佛滿示現；八如意自在，一切佛國隨心轉變；九法自在，無邊法明隨意現入；十智自在，具佛如來一切種智。今此略明一生自在，於中初法，次喻，後合。

Next, mastery is explained: "After the bodhisattva enters these kings of samādhis, they attain the stage of mastery" summarizes what came before and introduces what follows, directly demonstrating this attainment. Below, its marks are analyzed. According to the Daśabhūmika Sūtra, mastery has ten [aspects]: first, mastery over life, sustaining it as one wishes; second, mastery over mind, entering immeasurable samādhis at will; third, mastery over material provisions, manifesting immeasurable pure lands as one wishes; fourth, mastery over karma, abiding for a period of time as one wishes in the present or future life; fifth, mastery over rebirth, manifesting rebirth in all worlds as one wishes; sixth, mastery over vows, attaining buddhahood at all times and places as one wishes; seventh, mastery over conviction, manifesting worlds everywhere filled with buddhas; eighth, mastery over miraculous powers, transforming all buddha-realms according to one's intent; ninth, mastery over dharmas, manifesting and entering limitless dharma-illuminations as one wishes; tenth, mastery over knowledge, being endowed with the knowledge of all aspects of the buddhas and Tathāgatas. Here, [the text] briefly explains only the mastery over rebirth; within this, there is first the principle, next the metaphor, and finally the application.