When each thought absorbs your attention completely, it means you identify with the voice in your head. Thought then becomes invested with a sense of self. This is the ego, a mind-made "me." That mentally constructed self feels incomplete and precarious. That's why fearing and wanting are its predominant emotions and motivating forces.
Eckhart TollePeople are amazed to realize they can enjoy the moment rather than be stressed by it when hurrying to an appointment. You can enjoy the energy movement of the moment when you do not have a mental projection of a future moment you need to get to. You still know that you need to get there, but it is the secondary consideration.
Eckhart TolleThere have been many people for whom limitations, failure, loss, or pain in whatever form turned out to be their greatest teacher. It taught them to let go of false self-images and superficial ego-dictated goals and desires. It gave them depth, humility and compassion. It made them more real.
Eckhart TolleFor most people, spiritual awakening is a gradual process. Rarely does it happen all at once. When it does, though, it is usually brought about by intense suffering.
Eckhart Tolle