The primary purpose of the hero's journey in mythology is to illustrate personal growth and transformation. This narrative framework often follows a hero who faces trials and tribulations, leading to self-discovery and greater wisdom. It serves to convey essential moral lessons and universal themes, such as courage, redemption, and the quest for meaning. By embodying the struggles and triumphs of the human experience, the hero's journey connects audiences across time and culture, fostering empathy and understanding.