What is definition eidolon?

An eidolon is a concept that refers to an apparition or phantom, a phantom image, or a reflection of an ideal that one wants to achieve. The word "eidolon" is derived from the Greek language, where it means a "phantom" or "specter." It has been used in literature and philosophy to refer to an idealized image or a representation of something that exists only in the mind or imagination. In psychology, the term is often used to refer to the adaptive changes that are experienced in the mind of an individual. It is a phenomenon where a person projects a particular set of attitudes, behaviors, or beliefs onto an object or individual, and then experiences a sense of shame for the past or fear for the future because of the cultural, social, or religious values they hold.