Sierpinski's gasket

O Here It Is And There It Is...

O here it is!  And there it is!
And no one knows whose share it is
Nor dares to stake a claim -
But we have seen it in the air
A fairy like a William Pear -
With but itself to blame.

A Thug it is - and smug it is
And like a floating pug it is
Above the orchard trees
It has no right - no right at all
To soar above the orchard wall
With chilblains on its knees.

 —Mervyn Peake