Sveta Dvipam is situated in the middle of Ksheerabdhi (Tiruparkkadal). All the residents here are Srivaishnava-s who constantly worship Emperuman. It is such a wonderful island (Dvipam). As the special meaning of the shloka, Svami Desikan mentions Srirangam as Sveta Dvipam. That is, surrounded by Kaveri on all four sides and Srirangam is in the middle, as a dvipam. Perumal at Srirangam graces us with a darshan that is similar to his darshan at Tirupparkkadal; moreover, as many Srivaishnava-s reside at Srirangam, it is like Sveta Dvipam.