In short, our mind wanders mostly to something about ourselves—my thoughts, my emotions, my relationships, who liked my new post on my Facebook page—all the minutiae of our life story. By framing every event in how it impacts ourselves, the default mode makes each of us the center of the universe as we know it. Those reveries knit together our sense of “self” from the fragmentary memories, hopes, dreams, plans, and so on that center on I, me, and mine. Our default mode continually rescripts a movie where each of us stars, replaying particularly favorite or upsetting scenes over and over.
