Hymn by Eugene Field

No, the speaker is speaking to their own heart. This is a rhetorical device known as apostrophe, where someone addresses something that can't literally respond. By treating the heart as a separate listener, the devotion feels more urgent and alive, as if the speaker is trying to persuade themselves to experience the emotions they know they should feel.

Field attributes the work to Luther, noting that translating or adapting his hymns was a common practice in 19th-century American religious publishing. Luther indeed composed Christmas hymns, with "Von Himmel hoch" ("From Heaven Above") being one of the most famous. It's unclear whether the version in question is a direct translation of a specific text by Luther or a more creative adaptation influenced by his style. However, Field's contemporaries accepted this attribution.

Consecrate means to set something apart as holy or sacred. When the speaker refers to their breast as "a chamber consecrate to thee," they express that inviting Christ in will turn their ordinary human heart into a sacred space, much like how a church is dedicated for worship.

It refers to the lullabies and carols sung to the baby Jesus in the manger — a tradition of Christmas songs that traces back to Bethlehem. When the speaker promises to "prolong" it, they're expressing their commitment to keeping that tradition alive through their own singing and faith.

It originates from the Gospel of Luke (2:14), where angels visit shepherds on the night Jesus is born and sing, "Glory to God in the highest, and on earth peace, good will toward men." Field's final stanza closely mirrors that angelic song, which is why it resonates with readers, even those unfamiliar with this poem.

In Christian theology, reconciliation refers to restoring the fractured relationship between God and humanity due to sin. The poem suggests that Christ's birth represents the moment this relationship is restored. Field chooses this word intentionally — it conveys more than simply "made peace," as it suggests that something truly broken has been truly repaired.

Each stanza uses an AABB rhyme scheme — pairs of rhyming couplets. This pattern is among the oldest and most popular in hymn writing due to its ease of memorization and singing. The four-line stanza with this structure is often referred to as a hymn stanza or long meter, linking this poem directly to the tradition of congregational singing.

The repetition acts like a chorus in a song, bringing the poem back to its main theme: this is a deeply personal act of faith, not something for public display. Each time the phrase comes up, it serves as a reminder that the poem focuses on the inner feelings of an individual rather than a grand theological spectacle.