In the first month or so of seeing my T, he gave me a copy of a CBT sort of book about depression. I read it, and the next week we both realized it was only helpful in terms of what would not help me! Years later I gave him a several page excerpt from a book about group process that I thought perfectly analyzed a dysfunctional group I was in. He told me the next week that it was excellent work, we talked about how I saw it reflecting my group, and helped me make the decision to leave the group. But we're both academics, and he very much treated it in that fashion. While it was related to my experience, I had more of a problem solving reason for sharing it, not so much as a way of finding my feelings.