One of the valuable online sources from the MAA (Mathematical Association of America) is the Math Values blog -- found at this link -- a blog that explores COMMUNICATION, COMMUNITY, INCLUSIVITY, and TEACHING and LEARNING. Using the SEARCH feature, I entered "poetry" and found this variety of resources -- including mention of the Steven Strogatz Prize for Math Communication -- SHARE YOUR LOVE OF MATH WITH THE WORLD -- a contest for high school students with deadline April 28, 2023. Entry categories include Art, Audio, Performance, Social Media, Video, and Writing. Guidelines are available here.
Back in June, 2021 at this link I shared a portion of the poem by Julia Schanen that won in the Writing category that year. It's second line is the title of this blog posting -- and the complete poem is available here. A 2022 Strogatz winner was Wyeth Renwick -- and this blog posting features his poem.
I close with two of my favorite lines of poetry:
The Secret Sits by Robert Frost (1874-1963)
We dance around in a ring and suppose,
But the Secret sits in the middle and knows.