When you learn to be the witness of your thoughts and emotions, which is an essential part of being present, you may be surprised when you first become aware of the background "static" of ordinary unconsciousness and realize how rarely, if ever, you are truly at ease within yourself. On the level of your thinking, you will find a great deal of resistance in the form of judgment, discontent, and mental projection away from the Now. On the emotional level, there will be an undercurrent of unease, tension, boredom, or nervousness. Both are aspects of the mind in its habitual resistance mode.
— Eckhart Tolle