param param jigamisor-bhava-sagarasya
sandarsanam visayinam-atha yostams ca
ha hanta hanta vis-bhaksanato’py asadhu
“For one who really wants to cross the material ocean and who wants to engage in the transcendental loving service of the Lord without any connection with anything material, seeing a materialist engaged in sense gratification and seeing a woman who is similarly interested is more abominable than drinking poison willingly.” (Caitanya-candrodaya-Nataka 8.23)
The letter and spirit of this verse was the very life and soul of Gaura Kisora dasa Babaji Maharaja.
You find a large biography and a book on the life and teaching of Srila Gaukisora Dasa Babaji in Isvara Archive.