Reflections in the Mind's Eye

The title comes from a line in the book. The hero stumbles upon woman who can read his mind, and he can read hers. The hero describes his visions of the woman's past as reflections in his mind's eye. They can experience each others' memories of the past and thus gain insight into the male/female relationship previously not possible. Their minds in turn give them access to a broad multiverse filled with alternate Earths; with alternate histories they can explore.