The other part of knowing something

In a chapter of Mary Oliver’s Upstream, she recounts a memory of keeping an injured gull alive. Near the end of its life she said the following.

He was, of course, a piece of the sky. His eyes said so. This is not fact; this is the other part of knowing something, when there is no proof, but neither is there any way toward disbelief. Imagine lifting the lid from a jar and finding it filled not with darkness but with light. Bird was like that. Startling, elegant, alive.

A beautiful visual of belief.