"I don't like smiley pictures. A smile is a defense mechanism. It says, You can't have the real me but here's my smile. You get closer to the real person when they stop smiling."

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Because of its phantom nature, and despite elaborate defense mechanisms, the ego is very vulnerable and insecure, and it sees itself as constantly under threat. This, by the way, is the case even if the ego is outwardly very confident.

— Eckhart Tolle