susrusoh-one who is engaged in hearing; sraddadhanasya-with care and attention; vasudeva-in respect to Vasudeva; katha-message; rucih-affinity; syat-is made possible; mahat-sevaya-by service rendered to pure devotees; viprah-O twice-born; punya-tirtha-those who are cleansed of all vice; nisevanat-by service.