Purushaartha Kaashtai 11 - Bhaagavatha Kainkaryam

Svami details that He gives prapannaas both seshatvam and seshithvam.
When bhaagavathaas do kainkaryams for other bhaagavathaas, the person who does kainkaryam is seshan and other bhagavathaa receiving that kainkaryam is seshi. Since bhagavathaas do paraspara kainkaryam with neecha bhaavam to each other, every bhaagavathaa is seshan during some times as well as seshi at other times.
Bhaagavathaas prostrating to each other show they each are both seshan as well as seshi. By His sankalpam they generate athisayam for each other.
A paati who is unable to even take care of herself, will go to great lengths to prepare many special edibles for her grandson who is visiting. This is because the bhogam/satisfaction of doing for her grandson is giving her the shakthi visesham.
Likewise a bhaagavathaa who does daasathvam to Him (guna vaseekaran) as well as His bhaagavathaas, gets bhogam/ aanandha anubhavam which generates preethi which in turn makes him do more kainkaryams.
By His own sankalpam/icchai He creates seshithvam for bhaagavathaas. By His icchai along with the icchai to do sesha vrtti to another bhaagavathaa that He creates in us, He generates seshathvam for His bhaagavathaas.