Ego refers to a person's sense of self or their identity. It plays a crucial role in how we perceive ourselves and interact with others. A healthy ego helps us feel confident and assertive, while an inflated ego can lead to arrogance and a lack of empathy. Understanding our ego can help us navigate relationships and personal growth. In psychology, the concept of ego is often discussed in relation to Sigmund Freud's theory, where it acts as a mediator between our basic desires and societal expectations. Balancing our ego is essential for emotional well-being and maintaining healthy connections with those around us.