Egoism is frequently associated with the early Greek hedonists whom aim was pursuing pleasure and avoiding pain. The concept of egoism is rooted in the tradition of Greek hedonism. The ancient Greek philosopher, Epicurus asserted that our life's aim should be fulfilling our moral obligation.
In the Middle Ages, Christian theologians "denounced Epicurean hedonism which they believed was inconsistent with the Christian emphasis on avoiding sin, doing God's will, and developing the Christian value of faith, hope and charity".
Our ego is part of our personality that loves manufacturing "less than" experiences. Our ego who feeds on fear, doubts and pain. The more it attach to ourselves in our ego thought, the further it move away from our soul truth. Inevitably, if you keep hooking into your ego you'll end up doing the same thing. Eventually, you'll be so worn down that you'll accept and agree with the inner dialogue of "I'm worthless and a failure". The ego will keep coming back again and again, and just like any abusive person who simply won't got it, wants to project fears and doubts and not find peace within. The argument will continue to resurface and never be healed.