Thinking, or more precisely identification with thinking, gives rise to and maintains the ego, which, in our Western society in particular, is out of control. It believes it is real and tries hard to maintain its supremacy. Negative states of mind, such as anger, resentment, fear, envy, and jealousy, are products of the ego.
Eckhart TolleI drink a glass of wine or two occasionally with dinner. 'You drink alcohol?!' Well, if my state of consciousness is so fragile that a glass of wine would upset it, then it can't be worth very much.
Eckhart TolleStressful energy arises when you think some future moment is more important than the present moment, and the doing becomes only a means to an end.
Eckhart TolleAll negativity is caused by an accumulation of psychological time and denial of the present. Unease, anxiety, tension, stress, worry - all forms of fear - are caused by too much future, and not enough presence. Guilt, regret, resentment, grievances, sadness, bitterness, and all forms of nonforgiveness are caused by too much past, and not enough presence.
Eckhart Tolle