Classic Poem

Oft have I said, I say it once more,
I, a wanderer, do not stray from myself.
I am a kind of parrot; the mirror is holden to me;
What the Eternal says, I stammering say again.
Give me what you will; I eat thistles as roses,
And according to my food I grow and I give.
Scorn me not, but know I have the pearl,
And am only seeking one to receive it.