Madi compares someone's words to the coffee rings left on a desk: small marks that linger long after the cup is gone. The comparison is simple, but it says a lot. Those words have stuck around, leaving a faint but visible trace in the speaker's life.
The poem's real feeling comes in the parenthesis. The speaker first says the words are "hard to get rid of," then quickly corrects themselves. A coffee ring wipes away easily enough. The difficulty isn't physical, it's emotional. The speaker doesn't want to clean the mark away, and admitting that seems a little embarrassing, which is why it's tucked in brackets like a quiet aside.
The mood is wistful and gently vulnerable. Nothing dramatic happens, yet the poem suggests someone who holds on to what another person said, even when letting go would be easy. The short lines make the confession feel honest and unguarded.