[406] When he had sat down to one side, Saccaka the Nigaṇṭha's son said this to the Blessed One: "Worthy Gotama, there are some ascetics and brahmins who dwell devoted to the pursuit of development of the body (kāyabhāvanā), but not to development of the mind (cittabhāvanā). They experience, worthy Gotama, painful bodily feeling (vedanā). In the past, worthy Gotama, when one was touched by painful bodily feeling, his thighs would become rigid, his heart would burst, hot blood would gush up from his mouth, and they would go mad, becoming deranged in mind (citta). In his case, worthy Gotama, the mind follows along with the body; it proceeds under the body's control. Why is that? Because the mind is undeveloped. But there are, worthy Gotama, some ascetics and brahmins who dwell devoted to the pursuit of development of the mind, but not to development of the body. They experience, worthy Gotama, painful feeling pertaining to mind and mental factors (cittacetasika). In the past, worthy Gotama, when one was touched by painful mental feeling, his thighs would become rigid, his heart would burst, hot blood would gush up from his mouth, and they would go mad, becoming deranged in mind. In his case, worthy Gotama, the body follows along with the mind; it proceeds under the mind's control. Why is that? Because the body is undeveloped. It occurs to me, worthy Gotama: 'Surely the worthy Gotama's disciples dwell devoted to the pursuit of development of the mind, but not to development of the body.'"
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.