At the moment of his awakening, Kondañña saw that whatever arises also passes away. This talk explores impermanence at three scales: the vast span of geologic and cosmic time, the arc of our own aging and mortality, and the moment-to-moment flicker of experience. Drawing on the suttas, poetry, and stories from practice, we look at how assuming permanence shapes our lives, and how seeing through it can open into awe, gratitude, and the freedom of letting go.