Van Gogh's Artistic Breakthrough

It's about the tension between inner desire and acceptable behavior.

A cafe is a fine place, unless you are out of work, friendless, with nothing productive to occupy your attention. Then the gap between what you are allowed to do (buy food, make pointless chit-chat, wait for something interesting to happen) and what you want to do (anything!) grows.

I wonder if this quote is the inspiration behind McDonald's creating the McCafé.

My thought exactly. The link is just to the Wikipedia article, and no section in that article has “breakthrough” in the title.