A detailed study of 'Artha Pancaka' by Pillai Lokacarya and Swami Desika. This book offers deep insights into the subject.
Vedanta is considered by the common man as it is to do with spirituality and does not concern him. On the contrary, Vedanta is very much relevant to every living being to lead a life of sreyas to oneself and to society. Vedanta talks about Tattva (realities), Hita (means) and Purusartha (the goal). In Visistadvaita tattva is further classified as three realities cit (the sentient) acit (the insentient) and isvara the controller of the other two. It is the relationship between these three which is so significant, and that is what is discussed by all acaryas.
The cit, when it is associated with acit in the form of sarira, is able to transact with the grace of Isvara to attain moksa the goal, the purusartha.