With lovelier blending, on that stony mirror
The colours spread by man so artfully.
Know then, O friend! such Greeks the Sufis are,
Owning nor book nor master; and on earth
Having one sole and simple task,—to make
Their hearts a stainless mirror for their God.
Is thy heart clear and argent as the moon?
Then imaged there may rest, innumerous,
The forms and hues of heaven.[[192]]
So, too, says Angelus Silesius,—