Just as when two or three drops of water fall onto an iron pan heated all day...

Just as when two or three drops of water fall onto an iron pan heated all day: Slow is the falling of the drops of water, but they quickly vanish & disappear.

In the same way, there is the case where a certain person is practicing for the abandoning & relinquishing of acquisitions. As he is practicing for the abandoning & relinquishing of acquisitions, then — from time to time, owing to lapses in mindfulness — he is assailed by memories & resolves associated with acquisitions. Slow is the arising of his mindfulness, but then he quickly abandons [those memories & resolves], destroys them, dispels them, & wipes them out of existence.

Latukikopama Sutta
The Quail Simile