Prabhupāda: A pure devotee does not try to become a Brahmā also, what to speak of other demigods, because anyone within this material world, he has got some material desire. Anyone. Therefore he is not liberated. He is conditioned. Only the pure devotee, who is trying to satisfy Kṛṣṇa by all his activities, he is liberated.
What do you think, Rāmānanda? Eh? Is it clear or not?
Rāmānanda: It's clear.
Prabhupāda: That's nice. Thank you. Yamunā devī?
Yamunā: I surrender to your lotus feet, Śrīla Prabhupāda.
Prabhupāda: All right. So anyone, if you have got doubt you can clear it. Now you can try to understand how powerful is this pure chanting of Hare Kṛṣṇa mantra. Offenseless chanting of Hare Kṛṣṇa mantra means you remain liberated always.
(pause) Offensive chanting . . .
Once chanting is sufficient. But because we are not offenseless, therefore we have to make a regulated program that we must chant Hare Kṛṣṇa so many times. Otherwise one chanting of Kṛṣṇa is sufficient to make you liberated. One chant, "Kṛṣṇa," "Rāma," once, that's all, sufficient.