Do the doubts scream at you louder the closer you get to the finish line?
Mile 22
not yet in sight.
every Muscle screams for release
fire in your lungs.

Poseidon reaches up to drag you into deep water.
and you want to let him.

dig deep.
just a little further.
you can go on.

There is a famous statue in DC area. It is now at the national harbor. It used to be elsewhere. A colleague who used to run the marine core marathon commented that you would come up to the statue toward the end but not at the end, and the statue was the depiction of exactly what you felt like. The above is a quick sketch of the statue.