What does it mean?

It's okay to not know. It's okay to think you know, and then to think again. It's okay to think of several possibilities. If two or more of the possibilities contradict one another, that's even better. It's okay to not know, and allow yourself to feel somehow moved, changed, intrigued. It's okay to look away and then look back. It's okay to return again and again.

*

not since
a cobbled path
an ivied wall
the paper beneath
an artist's hand