am i the shadow or am i the man?

I walk in the darkness,
The frost in the air and the light up above,
casting its shadow.
I chase mine own.

I draw close to my shade,
it grows darker and denser
as I attempt to become the man
that I am destined to be.
I follow its path; its validity I question.
Clearly defined. Edges sharp, shape takes its form.

We walk in tandem; dance with the devil I must, but there is an expanse between.
I shiver as the temperature drops; my oxygen turns to vapor before my eyes; so does my soul.
My shadow expands until it disappears into the light that created it.

Am I the shadow or am I the man.