Fear seems to have many causes. Fear of loss, fear of failure, fear of being hurt, and so on, but ultimately all fear is the ego's fear of death, of annihilation. To the ego, death is always just around the corner. In this mind-identified state, fear of death affects every aspect of your life.
Eckhart TolleTo me the ego is the habitual and compulsive thought processes that go through everybody's mind continuously. External things like possessions or memories or failures or successes or achievements. Your personal history.
Eckhart TolleYou pick up the phone and you talk to somebody. There's a voice on the other end and you say what you have to say. This is how I perceive my life. I don't see myself as "Oh, I'm doing this great thing because I'm going to give this talk, now everybody's going to be transformed."
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 Tolle