This quote emphasizes how anger can cut both ways, harming the person who holds onto it as well as the people around them. The double-edged sword metaphor suggests that uncontrolled anger can damage relationships, self-esteem, and mental health. It encourages the careful handling of anger to avoid unnecessary harm. By managing this powerful emotion constructively, individuals can prevent both personal suffering and hurting others in the process. The quote serves as a reminder that moderation is key.