CC Antya 17.54
balite ha-ila bhāvodgama
piṅgalāra vacana-smṛti, karāila bhāva-mati,
tāte kare artha-nirdhāraṇa
Piṅgalā was a prostitute who said, “To hope against hope produces only misery. Utter hopelessness is the greatest happiness.” Remembering this statement, Śrī Caitanya Mahāprabhu became ecstatic. The story of Piṅgalā is found in Śrīmad-Bhāgavatam, Eleventh Canto, eighth chapter, verses 22-44, as well as in the Mahābhārata, Śānti-parva, chapter 174.