Later psychologists, following Otto Fenichel in the mid-20th century, reinterpreted the purpose of defense mechanisms as preserving one’s self-esteem.13 This has become the polite, common-sense explanation—that we deceive ourselves because we can’t handle the truth. Our egos and self-esteem are fragile and need to be shielded from distressing information, like the fact that we probably won’t win the upcoming competition, or the fact that we may be sick with some lurking cancer.
