I am and I am not

 There is a thing

Within a place

A single “it”

Set in space

Remaining still

And yet “It” moves

A shift in time

Itself consumed

The thing that is

Which once was one

Is twice existing

End undone

“It” goes on

By force unknown

“Its” past and future

Beside its own

“It” is and was

And it shall be

An infinite art

That cannot be