Ṭhāniyasutta
“Kāmarāgaṭṭhāniyānaṁ, bhikkhave, dhammānaṁ manasikārabahulīkārā anuppanno ceva kāmacchando uppajjati, uppanno ca kāmacchando bhiyyobhāvāya vepullāya saṁvattati. Byāpādaṭṭhāniyānaṁ, bhikkhave, dhammānaṁ manasikārabahulīkārā anuppanno ceva byāpādo uppajjati, uppanno ca byāpādo bhiyyobhāvāya vepullāya saṁvattati. Thinamiddhaṭṭhāniyānaṁ, bhikkhave, dhammānaṁ manasikārabahulīkārā anuppannañceva thinamiddhaṁ uppajjati, uppannañca thinamiddhaṁ bhiyyobhāvāya vepullāya saṁvattati. Uddhaccakukkuccaṭṭhāniyānaṁ, bhikkhave, dhammānaṁ manasikārabahulīkārā anuppannañceva uddhaccakukkuccaṁ uppajjati, uppannañca uddhaccakukkuccaṁ bhiyyobhāvāya vepullāya saṁvattati. Vicikicchāṭṭhāniyānaṁ, bhikkhave, dhammānaṁ manasikārabahulīkārā anuppannā ceva vicikicchā uppajjati, uppannā ca vicikicchā bhiyyobhāvāya vepullāya saṁvattati.
Grounds
“Mendicants, when you frequently apply the mind to things that are grounds for sensual greed, sensual desire arises, and once arisen it increases and grows. When you frequently apply the mind to things that are grounds for ill will, ill will arises, and once arisen it increases and grows. When you frequently apply the mind to things that are grounds for dullness and drowsiness, dullness and drowsiness arise, and once arisen they increase and grow. When you frequently apply the mind to things that are grounds for restlessness and remorse, restlessness and remorse arise, and once arisen they increase and grow. When you frequently apply the mind to things that are grounds for doubt, doubt arises, and once arisen it increases and grows.