Wherever you are, look closely at something that’s in front of you (book, table, dog, flower…).
Study this object for a few minutes, and think about it in as many ways as you can. For example:
—Where it came from
—How it was made, created, or grown (as applicable)
—How/where/when it was acquired
—How it has been used
—What its appearance shows about its history
—What people have thought of it
—What it would say if it could speak.
Take one moment of insight from that process, and work it into two lines: one of 5 syllables and one of 7 syllables.
Then take another aspect of your thinking, and add it to the poem as a final line of 5 syllables.