Just like in geometry, I have studied that point has no breadth and length. But actually there is breadth and length, but we cannot measure it. Similarly, the magnitude of the spirit soul is smaller than the point. We cannot measure it with our material measuring instruments. Anyway, even if you can, that is the magnitude. So that small particle is described in the Bhagavad-gita that na jayate na mriyate. That small particle has also no birth and death. Na hanyate hanyamane sarire [Bg. 2.20]. It is so powerful that that, because that small particle is within this body, dehino 'smin yatha dehe [Bg. 2.13], it is so healthy, so bright, moving so swiftly, acting so nicely, it has got so nice brain. And as soon as that small particle, atomic particle, is gone from this body, it is useless, a lump of matter. So if so much power is there for the small particle of the Supreme Soul, how much the Supreme Soul, who is all-pervading, universal form, how much potency he has got, you can just imagine.
Lecture on Bhagavad-Gita 4.6, Bombay, March 26, 1974