[119] And what, bhikkhus, is form? The four great elements (mahābhūtā) and the form derived from the four great elements (upādāyarūpa): this, bhikkhus, is called form. With the origin of nutriment (āhāra) there is the origin of form; with the cessation of nutriment there is the cessation of form. This Noble Eightfold Path is the way of practice leading to the cessation of form, namely: right view … right concentration.
The pleasure and joy that arise in dependence on form: this is the gratification (assāda) in form. That form is impermanent, suffering (dukkha), and subject to change: this is the danger (ādīnava) in form. The removal of desire and lust (chandarāga) for form, the abandoning of desire and lust: this is the escape (nissaraṇa) from form.
Bhikkhus, whatever ascetics or brahmins, having directly known form thus, having directly known the origin of form thus, having directly known the cessation of form thus, having directly known the way of practice leading to the cessation of form thus, having directly known the gratification in form thus, having directly known the danger in form thus, having directly known the escape from form thus, are practising for revulsion (nibbidā) towards form, for its fading away (virāga) and cessation — they are practising well. Those who are practising well have gained a foothold in this Dhamma and Discipline.
And, bhikkhus, whatever ascetics or brahmins, having directly known form thus, having directly known the origin of form thus, having directly known the cessation of form thus, having directly known the way of practice leading to the cessation of form thus, having directly known the gratification in form thus, having directly known the danger in form thus, having directly known the escape from form thus, are liberated through revulsion towards form, through its fading away and cessation, liberated by non-clinging — they are well liberated. Those who are well liberated are consummate ones (kevalino). Those who are consummate ones — for them there is no round (vaṭṭa) for their designation.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.