Bhagavad Gita -Sri Madhvacharya
(Bhashya and Tatparya Nirnaya)
Tatparya Nirnaya :- satva, more of satva than raja, similarly more of raja or of tama makes the classification of the order fourfold. The saatvics are the devotees of Sri Vishnu. The classification in performance of action is said to have been based on tranquility, self-control etc. The Vaishnavaas (devotees of Sri Vishnu) are saatvic (luminous) and all the others are taamasic - obscure (in decreasing order). The difference between them is determined thus on their capacity or on their adaptability (to be luminous). For Brahmins the tranquility and self-control is said to come naturally. The differences arising due to birth should be understood only as a constraint. Devotion to Sri Vishnu arises amongst all in the four-fold order. Amongst some it is more; even this difference is natural according to their individual attributes. Even though the Resplendent Lord is the Creator – कर्ता-, he is said to be अक्राम, not caused by others. Because He is independent in Himself there is no other creator for him. The adjective अपि is to show His special attribute. Know that there is no Creator for Me.