Dr. Gerson: My impressions of the devotees thus far, however, are that those who have been in the movement much longer . . .
Prabhupāda: Because even if you find somebody diseased, still, spiritual consciousness is not hampered. That is stated in the Śrīmad-Bhāgavatam, ahaituky apratihatā (SB 1.2.6). Apratihatā means without any impediment. There is no checking. Just like in the Ganges water you will sometimes find the stool is floating there. But that does not mean the Ganges water has become polluted. It is practical. In Calcutta, in our childhood, I was taking bath in the Ganges with my father. Many gentlemen regularly takes bath in the Ganges. And the modern scientific method is: all the garbage, throw into the river. So we were taking bath, and here is some stool floating. So we used to drive away the stool and take bath. The stool is unable to pollute the Ganges water. You will find in India still. The advanced gentlemen . . . "The dirty water," they say, Ganges water. But you will find practically that anyone who is taking regular bathing in this dirty water, he is healthy. You will find. It is very healthy. No disease touches him ordinarily. Of course, the body is susceptible to disease, but generally, those who are taking regular bath in the Ganges water, they are not diseased. You will find it practically still. So as the stool floating in the Ganges water cannot pollute the Ganges water, similarly, a devotee, even if you find scientifically that he is crazy or he is diseased, that is not impediment.
Dr. Gerson: I don't expect to find it, and if I do, I understand . . .
Prabhupāda: No, even if you find . . . you cannot find it, but even if you find, that is not impediment.