Prabhupāda: Knowledge received from Vedic sources. You are talking on the source of knowledge from the modern scientific books, similarly, we are talking also on the source of knowledge received from Vedas. It is not a religious belief or faith, blind faith. We are not inventing anything. We are talking on the basis of authoritative knowledge contained in the Vedas.
Reporter: Does this basis of knowledge include any information about beings and how they would react to people from another planet? Is there anything containing, you know, how they would react? How the moon people react to the earth people coming there?
Prabhupāda: Of course, such description is not in the Vedas, but in some sources we can understand that one king wanted to enter the heavenly kingdom, but he was opposed. He was opposed by the demigods. So much information we have got. So those who are not fit to live there or enter there, maybe they will be opposed by the inhabitants there. And that is also natural to think. If somebody all of a sudden comes to your country, oh, there is immediately immigration department. They will see the bona fides, how you can enter? So why don't you take that also? If moon planet is inhabited by more intelligent class of living entities how do we expect that without opposition we will be allowed to enter?