“Unless you let the truth of life teach you on its own terms, unless you develop some concrete practices for recognizing and overcoming your dualistic mind, you will remain in the first half of life forever, as most humanity has up until now. In the first half of life, you cannot work with the imperfect, nor can you accept the magical sense of life, which finally means that you cannot love anything or anyone at any depth. Nothing is going to change in history as long as most people are merely dualistic, either-or thinkers. Such splitting and denying leaves us at the level of mere information.”
Richard Rohr (Falling Upward: A Spirituality for the Two Halves of Life).