There is brain, but the brain is so perfect and instant that you are seeing that it is becoming automatically grown. No. There is brain. Just like electric, electrons. Just like here is a machine working, and pushing some button it is recording, and pushing some button it is stopped. A child may think that it is being done automatically. No. There is a big brain behind this machine. Big brain. But a foolish man sees that it is being automatically.
Similarly, nature's law is, parāsya śaktir vividhaiva śrūyate svābhāvikī jñāna-bala-kriyā ca (Śvetāśvatara Upaniṣad 6.8, CC Madhya 13.65, purport). Na tasya kāryam . . . these are the Vedic versions. Na tasya kāryaṁ kāraṇam ca vidyate. Just like if we have to construct a skyscraper building, then we have to work so hard to collect the materials, and piling them and making them secure, so many things. So . . . but this material creation, this universe, was created not like that. Just like it is said in the Bible, " 'Let there be creation,' and there was creation." Similarly, actually it is so.
The parāsya śaktir . . . God's potencies are so subtle and perfect, as soon as He desires, immediately thing is ready. This is called yoga system, yoga system. Therefore Kṛṣṇa is known as Yogeśvara. Of all the yogīs, He is the supreme yogī. Yathā yogeśvara kṛ . . . so there is work, but do not think that, "There was no work; automatically it comes." No. There was work, but it is so subtle and perfect. The same thing: the working, so many things are working, going on within the machine, that simply I push it on and it acts. Similarly, work is there for creation. The work is there, but it is actuated by the perfect potency of Kṛṣṇa.
That is real understanding. Don't think that it has come like mantra. No. The mantra is like that, but we cannot see how subtle work is going on. If we cannot see even in our body . . . suppose there is some injury in your finger or any part of the body. You do not know how subtle work is going on to cure it. Medicine is not cure; medicine is only helping. But there is automatic way of curing it. Even your energy—this is your energy. My bodily pains and pleasures, so many things are going on. Just like so many, you cannot count even how many hairs are there on your head. You cannot count.