The speaker shares a personal reflection about having a twin brother, highlighting his physical beauty and gentle nature. The imagery used, comparing him to "the day" and a "fawn," suggests an innocence and purity that is cherished by the narrator. The description of him as "healthy as fresh bread and butter" emphasizes vitality and warmth.

This evocative portrayal indicates a close bond, suggesting that the twin brother played a significant role in the speaker's life. The affection in the wording hints at nostalgia and perhaps a sense of loss, as the speaker reminisces about the qualities that made their brother so special and memorable.