Analysis of Heart of Glass

I look at my heart,
All I see is a glass,
Clear and transparent as it can be,
Just like any glass,
Look closely and you will see,
All dirt on this glass,
Clean it how many times I may,
It wouldn't ever be all,
I want to stand rock hard,
Yet I always end as soft glass,
I would ask The Almighty one day,
Oh what I just said, Alas,
Is there even such a thing,
This simple question always haunts,
She, My Angel can't listen,
Whom I want to say it all,
And to this crowd I never cared of,
I keep speaking in parts,
One day I might see an angel rise,
Who can take my glassy heart,
About to crack, About to break,
About to splatter, to fall apart.