Cintasutta
“Mā, bhikkhave, pāpakaṁ akusalaṁ cittaṁ cinteyyātha: ‘sassato loko’ti vā ‘asassato loko’ti vā, ‘antavā loko’ti vā ‘anantavā loko’ti vā, ‘taṁ jīvaṁ taṁ sarīran’ti vā ‘aññaṁ jīvaṁ aññaṁ sarīran’ti vā, ‘hoti tathāgato paraṁ maraṇā’ti vā ‘na hoti tathāgato paraṁ maraṇā’ti vā, ‘hoti ca na ca hoti tathāgato paraṁ maraṇā’ti vā, ‘neva hoti na na hoti tathāgato paraṁ maraṇā’ti vā. Taṁ kissa hetu? Nesā, bhikkhave, cintā atthasaṁhitā nādibrahmacariyakā na nibbidāya na virāgāya na nirodhāya na upasamāya na abhiññāya na sambodhāya na nibbānāya saṁvattati.
Thought
“Mendicants, don’t think up a bad, unskillful idea. For example: the cosmos is eternal, or not eternal, or finite, or infinite; the soul and the body are one and the same, or the soul is one thing, the body another; after death, a realized one still exists, or no longer exists, or both still exists and no longer exists, or neither still exists nor no longer exists. Why is that? Because those thoughts aren’t beneficial or relevant to the fundamentals of the spiritual life. They don’t lead to disillusionment, dispassion, cessation, peace, insight, awakening, and extinguishment.