Answer:
A hill full, a hole full, yet you cannot catch a bowl full.
Twigs and spheres and poles and plates. Join and bind to reason make.
Inside a burning house, this thing is best to make. And best to make it quickly, before the fire's too much to take.
The sharp slim blade, that cuts the wind.
What is it that no man ever yet did see, which never was, but always is to be?
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.