Answer:
It is something you will never see again.
What instrument plays from the heart?
Remove 'Y' and you do this with apparel. Remove 'E' and I am cautious.
What is it that after you take away the whole, some still remains?
What is so delicate that even mentioning it breaks it?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.