Narottama dasa Thakura has sung, sri-krsna-caitanya prabhu daya kara more. He prays for Lord Caitanya's mercy because He is the mercy incarnation, having appeared especially to claim the fallen souls. The more fallen one is, the greater one's claim to the favor of Lord Sri Caitanya Mahaprabhu. One must only be very sincere and serious. Despite being contaminated by all the bad qualities of this Kali-yuga, if one surrenders unto the lotus feet of Sri Caitanya Mahaprabhu, the Lord will surely and certainly deliver him. The best example is Jagai and Madhai. In this Age of Kali practically everyone is like Jagai and Madhai, but the sankirtana movement inaugurated by Lord Caitanya Mahaprabhu is still flowing like a great river, inundating the entire world, and thus the International Society for Krishna Consciousness is successfully claiming all fallen souls to free them from contamination.