Yes, he needs to not be in control. Being in control and making choices has led him on the wrong path so often. Angels are made to follow, and Castiel in particular has always been a follower. It's just the cause that he found not to be worthy of following anymore. He wants someone to take all that free will from him, to show him the entire scope of sensation and intimacy that's too much for him to bear on his own.

Castiel just needs... someone. Something. Vulnerability and a sense of belonging.

He just needs.

Right now, he needs to be home, aches to be washed clean of his sins and mistakes, of the wrong choices he has made yet again. His head moves a little in Sam's hands. A nod, though a tentative one. More like he's taking the information in, not yet able to agree with it.

Castiel looks over to Dean, sees him nod in agreement with Sam, then looks back up at Sam, and finally down at Sam's chest.

"Please help me."