siddhantatas tv abhede 'pi
rupam esa rasa-sthitih
siddhantatah—in reality; tu—but; abhede—no difference; api—although; sri-isa—of the husband of Laksmi, Narayana; krsna—of Lord Krsna; svarupayoh—between the forms; rasena—by transcendental mellows; utkrsyate—is superior; krsna-rupam—the form of Lord Krsna; esa—this; rasa-sthitih—the reservoir of pleasure.
" 'According to transcendental realization, there is no difference between the forms of Krsna and Narayana. Yet in Krsna there is a special transcendental attraction due to the conjugal mellow, and consequently He surpasses Narayana. This is the conclusion of transcendental mellows.'
This is a verse from the Bhakti-rasamrta-sindhu (1.2.59). Here Srila Krsnadasa Kaviraja says that Lord Caitanya spoke the verse to Venkata Bhatta, and earlier he said that Venkata Bhatta spoke it to the Lord. But since their conversation took place long, long before the Bhakti-rasamrta-sindhu was composed, the question my be raised as to how either of them quoted the verse. Srila Bhaktivinoda Thakura explains that this verse and many others like it were current among devotees long before the Bhakti-rasamrta-sindhu was composed. Thus devotees would always quote them and explain their purport in ecstasy.
Link to this page: https://prabhupadabooks.com/cc/madhya/9/146