俱舍論頌疏論本 5.18

5.18

為靜住者，明作意也。前無想定為求解脫，以出離想作意為先。此滅盡定為求靜住，以止息想作意為先。有頂者，明所依也。前無想定依第四禪，此滅盡定唯依有頂。謂下諸地皆名有想，行想麁動，難可止息。此有頂地名為非想，行相微細，易可止息，故唯有頂有滅盡定。

'Cultivated for peaceful abiding' clarifies the mental orientation. The preceding absorption of non-conception was for the sake of seeking liberation, preceded by mental orientation with the notion of renunciation. This absorption of cessation is for the sake of seeking peaceful abiding, preceded by mental orientation with the notion of tranquil cessation. 'The Peak of Existence' clarifies the ground upon which it relies. The preceding absorption of non-conception relies on the fourth dhyāna; this absorption of cessation relies exclusively on the Peak of Existence (bhavāgra). That is to say, all the lower grounds are termed 'having conception', where the mental activities and conceptions are coarse and agitated, and difficult to bring to cessation. This ground of the Peak of Existence is called 'neither conception [nor non-conception]', where the mental activities are subtle and easy to bring to cessation; therefore the absorption of cessation exists only in the Peak of Existence.