Prabhupada's lecture - Śrīmad-Bhāgavatam 1.8.38 Los Angeles, April 30, 1973
So if you make research, that is intelligent research. Then you'll find, "Here is the electric powerhouse." Similarly, if you further study, that who is running on this powerhouse, you'll find a human being. He's not impersonal; he's person. The electricity is impersonal. Even the powerhouse is also imperson. But the man behind the everything, that is a person. Therefore God is person. Logical conclusion. How He can be imperson? Imperson has no brain. The... Just like so many machines now we have invented, very wonderful machines. But the machine is not the brain. The operator is the brain. Why do they not understand? Therefore Kṛṣṇa says, mayādhyakṣeṇa prakṛtiḥ sūyate sa-carācaram: [Bg. 9.10] "You are seeing the energy or the wonderful action and reaction of this material cosmic manifestation. But don't think that they are working independently. No. I am behind there." So what is the difficulty to understand? Or from example you can understand how things can go on nicely without a nice brain behind these things? It is conclusion. Mayādhyakṣeṇa. And Kṛṣṇa says further, mayā tatam idaṁ sarvam avyakta-mūrtinā [Bg. 9.4]. Avyakta, avyakta is also mūrti, a form. Just like the sky. The sky is avyakta, not manifest, but it has also a form, a round form, the universe. Without form there is nothing. Everything has form. The so-called impersonal, that is also form. Just like you go to the ocean, you will find a form, a big circle. That is also form. How you can say there is no form?
So this formless, nirviśeṣa... You offer your prayers: nirviśeṣa-śūnyavādi. This is all foolishness. "Zero, impersonal" is all foolishness. Behind this impersonal feature and so-called zero, there is the supreme form. That is Kṛṣṇa. Īśvaraḥ paramaḥ kṛṣṇaḥ sac-cid-ānanda-vigrahaḥ [Bs. 5.1]. Īśvara means controller. That nature is not controlling. The real controller is Kṛṣṇa. Icchānurūpam api yasya ca ceṣṭate sā. Brahma-saṁhitā says prakṛti. Prakṛti is..., the Deity is Durgā. So it is said that she is working under the direction of Govinda. How she's working? Just like shadow. You have got your hand, and the shadow is the down. Your hand moves, the shadow moves. Similarly the motion is set. This is scientific truth. Behind all this manifestation, the..., there is a motion. And who set up that motion? The last, yesterday I was giving this example, just like shunting of big, big wagons in the railway line. One engine gives the motion, pushes one wagon, and it pushes other one, kat-kat-kat-kat, like that. You might have seen it.