This concept explores the parable of the pious old man with a toothache from Attar's Asrar Nameh. In the story, an old man who is considered close to God suffers from a severe toothache and complains bitterly throughout the night. A divine voice suddenly reproaches him, questioning why he raises such complaints against God after experiencing just one sleepless night. The allegory emphasizes the importance of patience (sabr), spiritual endurance, and accepting divine will without complaint, illustrating that true devotion is tested during moments of hardship.