The build-up in this is fantastic. I love Dean's mind space as well as his viewpoint of Sam. And wow, just so beautifully written. THIS LINE - I had to stop and appreciate and just love:

He wonders why Sam follows him sometimes, when firsthand he’s seen the strength Sam can exert in pursuit of his goals. Realizes now in the way Sam touches him that Sam follows him because he wants to, that his feet were set on this path by external forces but he’s chosen to follow it...

You are just amazing.