14.5 Sattva, Rajas and Tamas are the Gunas that arise from the Prakrti. They bind the immutable self in the body, O Arjuna.
English Translation of Ramanuja's Sanskrit Commentary By Swami Adidevananda
14.5 The three Gunas of Prakrti - Sattva, Rajas and Tamas - are inherent in the essential nature of Prakrti and are particular expressions of it. They can be known only through their effects such as 'brightness' etc. They are not apparent in the unevolved state of Prakrti but become apparent in its transformations as Mahat etc. They bind the self, which is conjoined with bodies such as those of divinities, men etc., composed of the modifications of Prakrti beginning with Mahat and ending with the elements. The self is immutable, i.e., It is not in Its pristine nature conjoined with the Gunas. But the Gunas bind It when residing in the body. The meaning is that they bind It by virtue of the limiting conditions of Its living in the body.
Sri Krsna proceeds to speak of the nature of Sattva, Rajas and Tamas and their modes of binding (the self):
