At Savatthi. There the Blessed One said: "From an inconstruable beginning comes transmigration. A beginning point is not evident, though beings hindered by ignorance and fettered by craving are transmigrating and wandering on. When you see someone who has fallen on hard times, overwhelmed with hard times, you should conclude: 'We, too, have experienced just this sort of thing in the course of that long, long time.'
"Why is that? From an inconstruable beginning comes transmigration. A beginning point is not evident, though beings hindered by ignorance and fettered by craving are transmigrating and wandering on. Long have you thus experienced stress, experienced pain, experienced loss, swelling the cemeteries -- enough to become disenchanted with all fabricated things, enough to become dispassionate, enough to be released."