In the story of Orpheus and Eurydice, the reactions of the "bloodless ghouls" to Orpheus's song in paragraph 3 are crucial to the overall theme of the power of love and the transcendent nature of art.

The "bloodless ghouls" are the inhabitants of the Underworld, a place where life and emotions are thought to be nonexistent. When Orpheus, the legendary musician, enters the Underworld to retrieve his beloved Eurydice, his music becomes a symbol of love's power and the transformative potential of art. As Orpheus plays his song, the reactions of the "bloodless ghouls" provide evidence of this theme:

"The very bloodless ghouls that fed

On the dead, those beyond redemption, and the shadowy

Ghosts of men outworn, all wept; so too the Furies

Were weeping..."

The fact that even the ghouls, creatures that feed on the dead and are typically devoid of emotion, are moved to tears by Orpheus's song highlights the profound impact of his music. Furthermore, the Furies, known for their vengeful nature and not for showing compassion, are also moved by his song. This demonstrates the power of love and art to transcend even the darkest realms and touch the hearts of even the most heartless beings.

The theme of love's power and the transcendent nature of art is further emphasized by the eventual granting of Orpheus's request to bring Eurydice back to life. Hades, the god of the Underworld, is so moved by Orpheus's song that he allows Eurydice to return to the world of the living, something that has never been done before.

In conclusion, the reactions of the "bloodless ghouls" to Orpheus's song in paragraph 3 are essential to the overall theme of the story, as they illustrate the transformative power of love and art, transcending the boundaries of life and death, and reaching even the darkest corners of existence. This is evidenced by the profound impact of Orpheus's music on the creatures of the Underworld and the ultimate granting of his request by Hades.