Feeling unworthy goes hand in hand with feeling separate from others, separate from life. If we are defective, how can we possibly belong? It's a vicious cycle: The more deficient we feel, the more separate and vulnerable we feel. Underneath our fear of being flawed is a more primal fear that something is wrong with life, that something bad is going to happen. Our reaction to this fear is to feel blame, even hatred, toward whatever we consider the source of the problem: ourselves, others, life itself. But even when we have directed our aversion outward, deep down we still feel vulnerable.
— Tara Brach, Radical Acceptance