"It’s this thunderous truism: We all know on some level that we are thinking all the time, that we have this voice in our heads, and the nature of this voice is mostly negative. It’s also repetitive and ceaselessly self-referential. We walk around in this fog of memory about the past and anticipation of a future that may or may not arrive in the form in which we imagine it. This observation seemed to describe me. I realized that the things I’d done in my life that I was most ashamed of had been as a result of having thoughts, impulses, urges, and emotions that I didn’t have the wherewithal to resist. So when I sat down and had that first confrontation with the voice in my head, I knew from having read Eckhart Tolle that it wasn’t going to be pretty, and I was motivated to do something about it.