I've never been in prison and hope to never experience it.
But I'm sure that being locked away in prison feels like you just died. I mean you're likely sitting in a prison cell or at least you're in a concrete building with a fence surrounding the yard around the prison and you cannot leave the prison.
I would rather die instead of being forced against my will to be locked away in a building or prison cell or being caged up in a fenced yard and being told what too do.