[197] Bhikkhus, suppose a great mass of fire of ten cartloads of wood, or of twenty cartloads of wood, or of thirty cartloads of wood, or of forty cartloads of wood were blazing; and a man from time to time would throw dry grass into it, would throw dry cow dung into it, and would throw dry wood into it. Thus, bhikkhus, that great mass of fire, with that as its nutriment, with that as its fuel, would blaze for a long, long time. Just so, bhikkhus, for one who dwells contemplating gratification (assāda) in things subject to clinging (upādāniyā dhammā), craving (taṇhā) increases. With craving as condition, clinging (upādāna) … Thus is the origin of this whole mass of suffering (dukkha).
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.