In Chinese mythology, the guardian of the gateway to the underworld is known as Yama. Yama serves as the lord of death, ensuring that souls are judged before entering the afterlife. This role emphasizes themes of morality, justice, and the consequences of one’s actions during life. Yama's presence in the mythological framework underscores the significance of understanding one’s deeds and their impact upon the soul's journey, reflecting religious and cultural beliefs surrounding life, mortality, and the afterlife in Chinese tradition.