Dhamma Verses (Dhammapada, KN 2)

13: The Chapter about the World – 166
Death does not see one who sees impermanence
Five hundred monks were given a subject for meditation but
did not attain, so they determined to return to the Buddha; on
the way they saw a mirage, and then bubbles bursting, and
they realised the self had the same characteristics of
impermanence; the Buddha then projected an image of himself
and taught them with this verse.
170. Yathā bubbulakaṁ passe, yathā passe marīcikaṁ,
evaṁ lokaṁ avekkhantaṁ Maccurājā na passati.
One should see it as a bubble,
one should see it as a mirage,
looking on the world in this way
the King of Death does not see one.