ममैवांशो जीवलोके जीवभूतः सनातनः ।मनःषष्ठानीन्द्रियाणि प्रकृतिस्थानि कर्षति ॥
mamaivāṃśo jīvaloke jīvabhūtaḥ sanātanaḥmanaḥṣaṣṭhānīndriyāṇi prakṛtisthāni karṣati
It is an eternal portion of Me that becomes the Jiva in the world of living creatures and cultivates the subjective powers of Prakriti, mind and the five senses.
Gītā 15·7This is an epithet, a statement of immense bearing and consequence. For it means that each soul, each being in its spiritual reality is the very Divine, however partial its actual manifestation of him in Nature. And it means too, if words have any sense, that each manifesting spirit, each of the many, is an eternal individual, an eternal unborn and undying power of the one Existence. We call this manifesting spirit the Jiva, because it appears here as if a living creature in a world of living creatures, and we speak of this spirit in man as the human soul and think of it in the terms of humanity only. But in truth it is something greater than its present appearance and not bound to its humanity: it was a lesser manifestation than the human in its past, it can become something much greater than mental man in its future. And when this soul rises above all ignorant limitation, then it puts on its divine nature of which its humanity is only a temporary veil, a thing of partial and incomplete significance.