This concept explores Section 12 of Attar's Mosibat Nameh, where a renowned man questions Morteza about what is most abundant in the world. Morteza responds that while obedience prevails in the heavens, on earth, nothing is more prevalent than human negligence (غفلت). Furthermore, beneath the earth, nothing is more abundant than regret (حسرت). The poem emphasizes the endless cycle of birth and death, highlighting humanity's inherent limitations and the incurable pain of mortal existence in the face of profound ignorance and ultimate sorrow.