Ramanuja is the founder of Visishtadvaita. According to his philosophy, Narayana is the supreme soul-who has all the living things and non-living things as his body. Narayana gives Moksha or Self-realization from the bondage for those who are utmost devoted in the path of spiritual seeking. This will lead to the unending blissful enjoyment.
Visishtadvaita philosophy always discusses three important subjects. They are-
Bhokta (the one who experiences anything and everything) ,
Bhogyam (those objects that are being experienced) ,
Iswara (god or suoreme that over powers both Bhokta and Bhogya) .
And according to the Visishtadvaita philosophy, Soul or Atma is of three types-
Baddha (a soul in bondage) ,
Mukta (a free soul) ,
Nityamukta (Ever free soul) .
The one and only nature of Atman is nothing but-Bliss that too lies beyond Trigunas or Three gunas (character) .
They are-
Sattva,
Rajas,
Tamas.
In B. Gita lord Krishnas urges every spiritual seekers to be a Gunatita (Rising up above all three gunas) .
As per this philosophy, the eternal soul of all substances that is-God or Brahman is all about-Satya (truth) , Gyana (ultimate knowledge) , Anantha (the infinite) , Ananda (bliss) .
Ramanuja admits the unity of the total within the existence, eternal differences are there. So, all practical purposes, despite being non-dulaistc in nature, it was very easy for Ramanuja to keep the differences between the soul and the god.
These are the characteristics and features of Visistadvaita philosophy.