[628] Therein, what are the six kinds of grief based on renunciation (nekkhamma)? Having understood the impermanence of forms (rūpa), their change, fading away, and cessation, one sees as it really is with right wisdom thus: 'Both formerly and now, all these forms are impermanent, suffering (dukkha), subject to change'; and having seen thus, one establishes a longing for the unsurpassed liberations (vimokkha): 'When indeed shall I enter upon and dwell in that base (āyatana) which the noble ones now enter upon and dwell in?' For one who thus establishes a longing for the unsurpassed liberations, grief arises with that longing as its condition. Such grief as this is called grief based on renunciation.
Having understood the impermanence of sounds … of tastes … of tangibles …
Having understood the impermanence of mind-objects (dhammā), their change, fading away, and cessation, one sees as it really is with right wisdom thus: 'Both formerly and now, all these mind-objects are impermanent, suffering, subject to change'; and having seen thus, one establishes a longing for the unsurpassed liberations: 'When indeed shall I enter upon and dwell in that base which the noble ones now enter upon and dwell in?' For one who thus establishes a longing for the unsurpassed liberations, grief arises with that longing as its condition. Such grief as this is called grief based on renunciation. These are the six kinds of grief based on renunciation.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.