For example, if anger is the predominant energy vibration of the pain-body and you think angry thoughts, dwelling on what someone did to you or what you are going to do to him or her, then you have become unconscious, and the pain-body has become "you." Where there is anger, there is always pain underneath. Or when a dark mood comes upon you and you start getting into a negative mind-pattern and thinking how dreadful your life is, your thinking has become aligned with the pain-body, and you have become unconscious and vulnerable to the pain-body's attack. "Unconscious," the way that I use the word here, means to be identified with some mental or emotional pattern. It implies a complete absence of the watcher.

Eckhart Tolle

from The Power of Now: A Guide to Spiritual Enlightenment