The poem begins with a classic depiction of domestic tranquility on Christmas Eve. The narrator establishes a scene where "not a creature was stirring, not even a mouse," emphasizing the profound silence that precedes the magical arrival. The "stockings were hung by the chimney with care," a detail that serves as a focal point for the anticipation of St. Nicholas’s visit. The children are described as "nestled all snug in their beds," while their imaginations are filled with "visions of sugar plums," capturing the innocence and wonder associated with the holiday season.
The serene night is abruptly interrupted when "out on the lawn there arose such a clatter," prompting the narrator to investigate. The urgency of the moment is conveyed through the narrator's actions: he flew to the window "like a flash" and threw open the shutters. Upon looking out, the narrator is greeted by a scene illuminated by the "moon on the breast of the new-fallen snow," which gave the "luster of midday to objects below." This celestial lighting reveals a "miniature sleigh and eight tiny reindeer," signaling the arrival of the legendary St. Nick, who is described as "lively and quick."
One of the most iconic segments of the poem is the roll call of the reindeer. The narrator notes that St. Nicholas’s "coursers" came "more rapid than eagles." He proceeds to name them individually: "Now Dasher, now Dancer, now Prancer and Vixen / On Comet, on Cupid, on Donder and Blitzen." This rhythmic enumeration adds a sense of momentum and excitement, culminating in the sleigh flying to the "top of the porch" and the "top of the wall" before ascending to the roof.
As St. Nicholas descends the chimney "with a bound," the poem provides a vivid, tactile description of his appearance. He is "dressed all in fur" and his clothes are "tarnished with ashes and soot," suggesting his journey through the chimney. The imagery used to describe his face is warm and endearing: his eyes "twinkled," his cheeks were "like roses," and his nose was "like a cherry." Perhaps most famously, his "little round belly" is described as shaking "when he laughed like a bowl full of jelly." This portrayal transforms the figure into a "chubby and plump" and "jolly elf," effectively removing any fear the narrator might have felt. The "stump of a pipe" held in his teeth and the smoke encircling his head like a "wreath" add a layer of cozy, domestic charm to the supernatural visitor.
St. Nicholas’s work is efficient and silent; he "spoke not a word, but went straight to work" filling the stockings. His departure is as swift as his arrival, rising back up the chimney with a "nod" and a gesture of confidentiality. As he reunites with his team, they fly away "like the down of a thistle." The poem concludes on a note of universal goodwill, as the narrator hears St. Nicholas exclaim, "Happy Christmas to all, and to all a good night!" This final benediction encapsulates the spirit of the poem—a celebration of magic, generosity, and the peaceful joy of the Christmas season.