[He was definitely, absolutely not prepared to be hit with this -- doesn't have any time to steady himself or try to understand it, is just hit with it immediately, and it's enough to send him gasping out, shuddering, and overwhelmed by each feeling he feels -- and unable to fight or struggle against it, partly because of the force of this world's magic, but also the effect those feelings have on him, that lack of energy to even struggle, it all blurring together. He feels it all.
He can't even place it in any kind of context, everything blurring together in that memory and in his own head, for a moment he even blanks out on who he is as a result of that bleeding over of Bucky's memories -- are they Bucky's? What -- and when he comes back to himself, he blinks rapidly, swaying on his feet and then. just. not sure how to react to that, staring in a stilled kind of shock]