Hush!

At the moment of munificence that chosen Messenger would demand of us attentiveness and a hundred reverences.”
’Tis as when a bird is (perched) on your head, and your soul trembles for fear of its flitting, So you dare not stir from your place, lest your beautiful bird should take to the air; You dare not breathe, you suppress a cough, lest that humá should fly away; and if any one speak sweet or sour (words) to you, you lay a finger on your lip, meaning, “Hush!”

The Masnawi – Volume 5, 3247