[391] Therein, what is volitional formation (saṅkhāra)?
The volition (cetanā), the intending, the state of having intended — this is called volitional formation.
Therein, what is consciousness (viññāṇa) conditioned by volitional formation?
The mind (citta), mentality (mano), mentation (mānasa) … the corresponding body-consciousness element (kāyaviññāṇa-dhātu) — this is called consciousness conditioned by volitional formation. …
Therein, what is feeling (vedanā) conditioned by contact (phassa)?
The bodily discomfort, the bodily pain (dukkha); the uncomfortable, painful experience born of body-contact; the uncomfortable, painful feeling born of body-contact — this is called feeling conditioned by contact.
Therein, what is existence (bhava) conditioned by feeling?
Excluding feeling: the aggregate of perception (saññākkhandha), the aggregate of volitional formations (saṅkhārakkhandha), the aggregate of consciousness (viññāṇakkhandha) — this is called existence conditioned by feeling. …
Therefore it is said: "Thus is the origin (samudaya) of this whole mass of suffering."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.