По поводу временнОго масштаба непостоянства, из Маха-хаттхипадопама сутты:
"Now there comes a time, friends, when the external liquid property is provoked and washes away village, town, city, district, & country. There comes a time when the water in the great ocean drops down one hundred leagues, two hundred... three hundred... four hundred... five hundred... six hundred... seven hundred leagues. There comes a time when the water in the great ocean stands seven palm-trees deep, six... five... four... three... two palm-trees deep, one palm-tree deep. There comes a time when the water in the great ocean stands seven fathoms deep, six... five... four... three... two fathoms deep, one fathom deep. There comes a time when the water in the great ocean stands half a fathom deep, hip-deep, knee-deep, ankle deep. There comes a time when the water in the great ocean is not even the depth of the first joint of a finger.
"So when even in the external liquid property — so vast — inconstancy will be discerned, destructibility will be discerned, a tendency to decay will be discerned, changeability will be discerned, then what in this short-lasting body, sustained by clinging, is 'I' or 'mine' or 'what I am'? It has here only a 'no.'"
http://www.accesstoinsight.org/tipitaka/mn/mn.028.than.htmlИз Маха-дуккхаккхандха сутты:
"Form
"Now what, monks, is the allure of forms? Suppose there were a maiden of the noble caste, the brahman caste, or the householder class, fifteen or sixteen years old, neither too tall nor too short, neither too thin nor too plump, neither too dark nor too pale. Is her beauty & charm at that time at its height?"
"Yes, lord."
"Whatever pleasure & joy arise in dependence on that beauty & charm: That is the allure of forms."
"And what is the drawback of forms? There is the case where one might see that very same woman at a later time, when she's eighty, ninety, one hundred years old: aged, roof-rafter crooked, bent-over, supported by a cane, palsied, miserable, broken-toothed, gray-haired, scanty-haired, bald, wrinkled, her body all blotchy. What do you think: Has her earlier beauty & charm vanished, and the drawback appeared?"
"Yes, lord."
"This, monks, is the drawback of forms.
"Again, one might see that very same woman sick, in pain, & seriously ill, lying soiled with her own urine & excrement, lifted up by others, laid down by others. What do you think: Has her earlier beauty & charm vanished, and the drawback appeared?"
"Yes, lord."
"This too, monks, is the drawback of forms.
"Again, one might see that very same woman as a corpse cast away in a charnel ground — one day, two days, three days dead, bloated, livid, & oozing. What do you think: Has her earlier beauty & charm vanished, and the drawback appeared?"
"Yes, lord."
"This too, monks, is the drawback of forms.
"Again, one might see that very same woman as a corpse cast away in a charnel ground picked at by crows, vultures, & hawks, by dogs, hyenas, & various other creatures... a skeleton smeared with flesh & blood, connected with tendons... a fleshless skeleton smeared with blood, connected with tendons... a skeleton without flesh or blood, connected with tendons... bones detached from their tendons, scattered in all directions — here a hand bone, there a foot bone, here a shin bone, there a thigh bone, here a hip bone, there a back bone, here a rib, there a breast bone, here a shoulder bone, there a neck bone, here a jaw bone, there a tooth, here a skull... the bones whitened, somewhat like the color of shells... piled up, more than a year old... decomposed into a powder. What do you think: Has her earlier beauty & charm vanished, and the drawback appeared?"
"Yes, lord."
"This too, monks, is the drawback of forms."
http://www.accesstoinsight.org/tipitaka/mn/mn.013.than.html