Answered in example sentence
"Sir," answered Don Quixote, "that cannot be on any account omitted, and the knight-errant would be disgraced who acted otherwise: for it is usual and customary in knight-errantry that the knight-errant, who on engaging in any great feat of arms has his lady before him, should turn his eyes towards her softly and lovingly, as though with them entreating her to favour and protect him in the hazardous venture he is about to undertake, and even though no one hear him, he is bound to say certain words between his teeth, commending himself to her with all his heart, and of this we have innumerable instances in the histories.