My long search for fingerprints in the face, body, and brain brought me to a realization that I had not expected—that we need a new theory of what emotions are and where they come from. In the chapters that follow, I introduce you to this new theory, which accounts for all the findings of the classical view as well as all the inconsistencies you’ve just seen. By moving beyond fingerprints and following the evidence, we will seek a better and more scientifically justified understanding, not only of emotion but also of ourselves.