Cakkhupālattheravatthu
Manopubbaṅgamā dhammā, manoseṭṭhā manomayā;Phenomena are preceded by the heart, ruled by the heart, made of the heart. Manasā ce paduṭṭhena, bhāsati vā karoti vā;If you speak or act with a corrupted heart, Tato naṁ dukkhamanveti, cakkaṁva vahato padaṁ.then suffering follows you – as the wheel of the cart, the track of the ox that pulls it.