If you think you are too small to make a difference, try sleeping with a mosquito.
Tenzin Gyatso said this in the context of environmental advocacy, encouraging ordinary people to act despite feeling insignificant against large global problems. It lands as a teaching on impermanence because it points to how quickly conditions change — one small irritant shifts your entire night. The mosquito does not wait for permission or scale. What seems negligible right now is already in motion, already changing things.
Reflection
Most of us are holding onto something we already know is over. What specific habit, relationship, or plan are you still treating as permanent when the evidence says otherwise?