The primary theme represented in the myth of Orpheus and Eurydice is the power of love in the face of loss. Orpheus's descent into the underworld to retrieve Eurydice demonstrates the lengths one will go for love and the struggles inherent in the human experience of grief. The myth also emphasizes the idea that love can transcend even the barriers of death, yet it also serves as a cautionary tale about trust and the importance of abiding by the rules governing the otherworld. Ultimately, it reflects the fragility of life and the bittersweet nature of love.