I know you didn't write that poem, but I'm 99% certain the apostrophes in "I thought about my body. It's past. It's present." have no business being there :)
Might be intentional, simultaneously talking about the past and present of a body and also literally that it is past. It is present. It would not be weird to have that kind of wordplay in a poem.
But also this was from an early draft so it could be a mistake.
But also this was from an early draft so it could be a mistake.