Wanderer 2: Shadow and I

I see my shadow ahead of me,
and follow it along the way,
small n’ big n’ large n’ tiny,
my friend ‘tis throughout the day.

Along the sideways are the post,
with constant space between each one.
My shadow appears like a ghost,
n’ grows n’ shrinks till we are one.

Be it day, be it night,
be it sun, be it the lights,
My shadow stays by my sight,
as I wander, days and nights.