How can we attach a physics asset bp to a character?

Hi guys, I’m new to unreal but I am trying to somehow use the physics asset from a character doll that I modeled. The intention is to have a spirit coming out of the doll (that is the real character) and the doll to kind of move freely while he is moving.
Problem is I don’t know how to attach the doll physics to the character blueprint I created.

Do you have any suggestions?