Ramanujacharya's Brahma Sutra Bhashya translated By George Thibaut
SriBhashya - Ramanuja's Commentary On Brahma Sutra (Vedanta Sutra)

30. (That assumption) is justified; on account of the perception of things which are marks of that; as in ordinary experience.

p. 650

The assumption of all the works perishing at the time of 'departure' involves no contradiction; since we perceive, in the sacred texts, matters which are marks of connexion with a body even on the part of the soul which has divested itself of all its works and become manifest in its true nature. Compare 'Having approached the highest light he manifests himself in his true form'; 'He moves about there laughing, playing, and rejoicing'; 'He becomes a self-ruler, he moves about in all worlds according to his will'; 'He becomes one, he becomes three,' &c. (Kh. Up. VIII, 12, 3; VII, 25, 2; 26, 2). All these texts refer to the soul's connexion with a body. The soul therefore, joined to the subtle body, may proceed on the path of the gods, even after all its works have passed away. But how can the subtle body persist, when the works which originate it have passed away? Through the power of knowledge, we reply. Knowledge does not indeed by itself originate the subtle body, but it possesses the power of making that body persist, even after the gross body--which is the instrument for the experience of all ordinary pains and pleasures--and all works have passed away, so as thereby to make the soul capable of moving on the path of the gods, and thus to obtain Brahman which is the fruit of knowledge. 'As in ordinary life.' As in ordinary life, a tank, which may have been made with a view to the irrigation of rice-fields and the like, is maintained and used for the purpose of drawing drinking-water, and so on, even after the intentions which originally led to its being made have passed away.--Here an objection is raised. It may be admitted, that at the time when a man possessing true knowledge dies, all his works pass away without a remainder, and that the subtle body only remains, enabling him to move towards Brahman; but it cannot be held that the soul in that state does not experience pain and pleasure; for we know from sacred tradition that Vasishtha, Avântara-tamas, and others, who had reached intuition of the highest truth, entered after death on other embodiments, and experienced pain and pleasure due to the birth of sons, various calamities, and so on.--To this the next Sûtra replies.