In a Good WaySukhitasutta

At Sāvatthī.Sāvatthiyaṁ viharati.

“Mendicants, this transmigration has no known beginning. …“Anamataggoyaṁ, bhikkhave, saṁsāro …pe… When you see someone in a good way, in a happy state, you should conclude:yaṁ, bhikkhave, passeyyātha sukhitaṁ susajjitaṁ, niṭṭhamettha gantabbaṁ: ‘In all this long time, we too have undergone the same thing.’‘amhehipi evarūpaṁ paccanubhūtaṁ iminā dīghena addhunā’ti.

Why is that?Taṁ kissa hetu? This transmigration has no known beginning. …Anamataggoyaṁ, bhikkhave, saṁsāro. This is quite enough for you to become disillusioned, dispassionate, and freed regarding all conditions.”alaṁ vimuccitun”ti.