Resentment is a complex that results from the inability to react to an injustice. The feeling of failure turns into resentment, which incubates until it reaches hatred, indignation and revenge. The unknown parts of the personality, our intolerant side, are relegated to the Shadow. We make a great image of ourselves. It is the Ego Complex. The resentful person feels mistreated by society. He or she has experienced exclusion and physical and mental abuse. When we are resentful, we bring in the god Hephaestus, excluded by both parents. The archetype is manifested by revenge. This complex is characterized by a tetralogy: Ego Complex, Intolerance, Sectarianism, Emotions of revenge and envy.