On Chalkboards

My yoga instructor opened our practice with a thought on chalkboards.

After you write on a chalkboard and try to erase it, it's still there. You can still see some remnants of what was written. And even after you go over it again, maybe you can't read exactly what was written, but you know something was.

Writing and erasing and writing and erasing. You aren't ever really erasing, you are just adding new layers.

Erase, and write anew. Build new layers.