A Shape of Me I Want to Set Free

An echo of my sight,
Shaped from light.
A mimic of my motion,
In true projection.

In dense rain or snow,
From head to toe.
Your the past of my mass,
And my negative glow.

Yet in darkness your black,
Or gone, in fact.
Without proof I wonder,
Strike a match and ponder.

Let you fade in your shade,
Be free of my state.
Spark you back to my mold,
Some demons are meant to hold.

Where you go in the black,
Is the code I want to crack.
Yet when no shape is upon me,
Perspective is all I hope to see.