In Chapter 18, Poem 10 of Attar's Mokhtar Nameh, the poet emphasizes the moral imperative of concealing the faults of others, particularly for those who claim spiritual insight ('a sign from the unseen'). The poem couples this advice with a warning about the irreversibility of loss, suggesting that once something valuable—such as trust, a good reputation, or a spiritual state—is ruined through careless or critical speech, it is extremely difficult to regain.