Erich Fromm writes in his book Man for Himself: The main task of man in life is to give birth to himself. To become what he potentially is. The most important product of man’s efforts is his own personality.
Some psychologists consider man’s second birth or psychological birth to be adolescence (11 to 20 years old), some when he walks, and some at six or eight months, that is, when he realizes that his caregiver (object) is completely separate from himself (the stage of individuation-separation).
Erikson considers the stage of identity formation as adolescence, and Elliott Jacques considers middle age as the second adolescence and re-identification, meaning the period of midlife review and a crisis like an identity crisis occurs for us. Is this the right place for me to be? Was this all my talent? Is this the right place for me to be? Ms. Newgarten writes: As we move from youth to middle age, we become very inclined to introspect.