sarvathaiva durūho 'yam
abhaktair bhagavad-rasaḥ
tat pÄdÄmbuja-sarvasvair
bhaktair evÄnurasyate
sarvathÄ - in all respects; eva - certainly; durÅ«haḥ - difficult to be understood; ayam - this; abhaktaiḥ - by nondevotees; bhagavat-rasaḥ - the exchange of transcendental mellows with the Supreme Personality of Godhead; tat - that; pÄda-ambuja-sarva-svaiḥ - whose all in all is the lotus feet; bhaktaiḥ - by devotees; eva - certainly; anurasyate - is relished.
This verse is also found in the Bhakti-rasÄmá¹›ta-sindhu (2.5.131).