The prāṇāyāma process, you can do it for one hours, two hours or, say, one day, two days, but this, this prāṇāyāma process, who are always engaged in Kṛṣṇa's service, that is natural. You cannot think. Sa vai manaḥ kṛṣṇa-padāravindayor (SB 9.4.18). If you simply engage your mind on the lotus feet of Kṛṣṇa, that is perpetual prāṇāyāma. Not for one hour, two hour, or a minute.
Indian man: But some yogis say that...
Prabhupāda: Some yogi may say whatever he likes, but what Kṛṣṇa says, we have to accept.
Indian man: In the, in the modern terminology, they say this, this technique of prāṇāyāma...
Prabhupāda: But the modern terminology, that is not, that is not a principle.
Indian man: No, but they say it is a rocket way to God.
Prabhupāda: Eh?
Indian man: They say it is a rocket way to God, doing prāṇāyāma.
Prabhupāda: What is it?
Tamāla Kṛṣṇa: A rocket, rocket ship way to God.
Indian man: Rocket.
Prabhupāda: But we don't find so long yogis and prāṇāyāma wallas know anything about God. We have tested so many. They remain the same rascal. I have seen it. They do not... Ask him, any yogis, "What do you know about God?" Ask him. You can ask. You are press reporter. You can ask, "What do you know about God? Describe Him." So what is the rocket? Rocket means you should go immediately. But if you do not know, then what is the use of this rocket? If you do not know what is God, then what is the use of this rocket? Just like they are going to the rocket planet, moon planet. Now the American government stopped announcing this rascaldom. You know that? Yes. So if you actually have got rocket, then you must approach that you must know the thing. But simply waste your money and come back. So any sensible man will not allow this. This is good, prāṇāyāma. Rocket process, it may be. But we don't think that it is rocket process at the present age.