Three short lines, and the whole poem is a blunt confession: the speaker doesn't want to die in Michigan. There's no explanation given, and that's what makes it interesting. We don't learn whether Michigan is home, a place the speaker feels stuck in, or somewhere they simply find bleak. The poem leaves us to fill in the reason.
The casual "wanna" gives the voice a offhand, spoken quality, like someone muttering a thought out loud. That plainness sits oddly next to a subject as heavy as death, and the contrast creates a mood that is wry and a little sad at once. It could be read as a joke about a place the speaker finds dull, or as a real worry about ending up trapped somewhere that doesn't feel like theirs. The short, broken lines add to the feeling of a thought slipping out before it can be polished. What stays with you is how small and specific the wish is: not a fear of dying, but a preference about where.