Brittany Allen's poem is a love letter written from the middle of a daydream. The speaker walks along smiling, picturing a future with a partner, and the poem moves between that imagined life and the love already present. Weather becomes a symbol of hardship: rain, sun or snow, nothing can "drown our parade." What sets this partner apart is staying power. Others left when things got inconvenient, but this person seems "permanent."
The feeling at the center is gratitude mixed with wonder. The speaker admires how fully the partner loves, with "heart, mind and soul," and keeps asking "why me?" There is a hint of self-doubt, since "purer, kinder souls" exist, yet the speaker feels chosen. That unconditional love makes the speaker's heart soar past the stars into a galaxy.
The mood is warm, giddy and tender, helped by small details like a smile, a hairstyle, a sleepy voice. The final line settles it: this isn't a daydream, but "a promise."