My marriage counselor is good at comforting me just with this voice. It's a certain tone he uses at times that I call the "super-caring voice." He calls it "holding with the voice" or something like that. With both him and my individual T, comfort also comes from the words they use, whether in session or over phone/e-mail/text. They both generally know what to say to reassure/comfort me. That wasn't immediate, but after the relationship built up, from building up trust and understanding. Really, I find both to be a comforting presence in general, like just being in the room with one of them. Hope that helps.