For me, during these “dog days” of summer, reverie means sitting in my gazebo (with my Yorkie next to me) and being “pleasantly lost” in thought to the music of birds, crickets, and cicadas. Sometimes my “absentminded dreamings” become poems.
For your reverie poem:
1. Take a walk, lie on the grass, lounge in your favorite lawn chair (or, if the outdoor weather isn’t cooperative, relax on a sofa or other comfortable place in your home). Any time is fine, but try doing this in the morning or evening.
2. Keep paper and a pen or pencil nearby.
3. Simply unwind, free your mind of distractions, and let yourself daydream.
4. Write down some of the things that come to you, and don’t try to organize your thoughts.
5. Later in the day (or the next day), go back to the notes you took during your reverie and look for inspiration. Is there something there that you can develop into a poem? What did you daydream about? What did your reverie bring to mind? Instead of one poem, you might find material for several short poems or a sequence of short poems. Your reverie may take a traditional, experimental, or fantasy form (and it's not necessary to use the word "reverie" in your title.)
Examples (Click Link to Read):