Answer
The ego, as described by Erik Erikson, is a positive driving force in human development, promoting growth and adaptation throughout the lifespan. According to Erikson, the ego actively engages with the external world and mediates between the individual's instincts and societal norms. This constructive interplay between the ego, instincts, and society allows individuals to navigate various developmental stages, successfully resolving psychosocial crises and building a strong sense of self.