Guest (2): Swamijī, what... You said that sleep is complete waste of time.
Prabhupāda: Yes. Because you cannot work then.
Guest (2): What about dreaming?
Prabhupāda: Dreaming is still waste of time. (laughter)
Guest (2): Is it possible to have Kṛṣṇa consciousness when you are asleep?
Prabhupāda: Dreaming is practically interaction of the activities, mental interaction of the activities in which you are engaged. You dream in different way; I dream in different way. So when the body is tired, it cannot work. It stops functioning. The mind works. So dreaming is the function of the mind. That's all. So... Huh?
Guest (2): (indistinct)
Prabhupāda: No. It is not from the spiritual platform. It is from the mental platform. In the spiritual platform, that is called suṣupti. There is no gross or material function of this contamination. So those who are advanced, they also dream Kṛṣṇa consciousness. Of course, that requires time to make little advancement. But after all, dream is the activities of the mind. Just like we work, that is the activities of the gross senses. Similarly, we work also on mental platform. That is called dream.
Guest (2): Are we to take Kṛṣṇa conscious dreams seriously or some illusion?
Prabhupāda: Well, that depends on your particular position, you see. Sometimes a Kṛṣṇa conscious persons dreams very seriously. Sometimes communication is there by dreams.