The Tramp

Have heard this song before. It came back to me with new thoughts yesterday. Adds some sense, to the senselessness all around. The sense in the senselessness. Here goes:

I'm the world you'll never see
I'm the slave you'll never free
I'm the truth you'll never know
I'm the place you'll never go
I'm the sound you'll never hear
I'm the course you'll never steer
I'm the will you'll not destroy
I'm the gin in the gin-soaked boy

I'm the half-truth in the lie
I'm the why not in the why
I'm the last roll of the die
I'm the old school in the tie
I'm the spirit in the sky
I'm the catcher in the rye
I'm the twinkle in her eye
I'm the jeff goldblum in the fly

Who am i?