"Life + Me = WORTHLESS"

I wrote an essay about my life.

My teacher always thought that I'm a good student, straight A's and so diligent.

They never ask me how I really am because I always showed them, this smile on my face.

Yeah I'm okay...

That's why I wrote this passage:

"If silver is tainted with color red, how nice could it be?

I wanted to hug pure white, but black is dominant.

Now scarlet is all I had, could I still see gold?"

I told them my worries, but they only regard it as one of the best essay.

My teacher ask me, what does it mean?

How can I answer when I'm lying in a casket?