Its an incomplete poem...i'd like some ideas...help please..?

Question:It's a simple question
that starts me on a life review
"why do you run?", they ask,
when i stop for a drink after my run.
But i cannot answer them
For several seconds, i sip at the bottle
and smile at their eager faces

"It makes me feel good", i reply
tossing the plastic bottle in the garbage,
glad that i can slip away without saying more.
But the question unsettles me.
the answer i provide to them
doesn't seem to ring true

Why do i run?
A runner, i have been for 3 years
and yet, i ask myself
"why, why, why do i run?"

when i run i run under my own power,
i go wherever i want
as fast as i want.
Each footstep i take, triggers a new thought.
With time i become oblivious to the footsteps,
and zone into my world.

A world where my voice is the only one heard;
a world, limitless, and where i can roam free
and do as i wish.
a world..

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