The persons who did not conceive Allah to be everything and Nothing of Nothing, died not as experts but as frustrated persons. Like a sparrow they just picked up a few grains in their beak from a stack. (The knowledge acquired by them with regard to the Divine mysteries was inestimably rudimental and shallow). They were mere bubbles in the ocean of existance (and they soon blew up into nothingness).
TRADITION: Hazrat Khizr had told Prophet Moosa that the aggregate knowledge of all persons on earth vis-a-vis that of Allah was like the drop of water picked up by a sparrow in her beak from a river.
از خودی سر مست گشتہ بی شراب،
ذرۂ خود راشمردہ آفتاب
(Roomi)
He was beside himself with ego, even though he had not taken wine. Though a mere particle, he considered himself as the sun.

Disappointed they died, never being enlightened,
Like a sparrow poking its beak, from pile of grass they departed,
in that Valley, like bubbles they were alive.