Dr. Patel: Astadhā, that's the lower prakṛti of God.
Prabhupāda: Yes, so now the study, first study, begins from material point of view: Wherefrom the sky came? How the sky came into existence? First of all sky. Then, from sky, there is sound. Then, from sound there is air. From air, there is... Along with these creations... the sky creation means the air creation also, the reception of the sound. So in this way it is all described in the Śrīmad-Bhāgavatam very nicely, how creation took place. Then, ultimately, we come to the land, where all the qualities of other elements are there. There is sound. There is touch. There is vision. There is smell. Everything is there. So... And the subtle matters. Mind, citta, intelligence, then buddh... intelligence. Then false ego. This is... At the present moment, everyone is thinking in the bodily concept of life: "I am American." "I am Indian." "I am brāhmaṇa." "I am kṣatriya." This is false ego. He's not, neither of them. Because he's spirit soul, a different identity. So these, how the subtle mind, intelligence, are working, one should know. How transmigration of the soul takes place? By the action of mind, intelligence and ego. They do not know. There is no such science. There are so many universities all over the world. But who is studying all these things? The psychologists, they have studied a little more about thinking, feeling and willing. That's all. But they do not know how he is working, how he is carrying the subtle soul to other body. That they do not know.