Coolness is a natural property of water. If there is no coolness in water, we think that there is something unusual. Many people may have gone on a pilgrimage to Badri, and they will recall that there is a hot spring near Brahma kund. While large quantities of cold water are present in the Alakananda river, no one asks why the water is cold, but when they find some hot water in a spring, they ask in surprise how there is a hot spring here. Whenever there is something unusual or contrary to the natural situation, then all kinds of doubts arise, and questions are asked. What is the reason for man to become a bundle of doubts? The main reason for man to have so many doubts is that man is not leading his life in the way in which he ought naturally to lead it. He is not conducting himself in a way in which he should. Because he has not understood the real meaning of the Self in him, he is not behaving as a human being as he ought to behave. This is the basis for all his doubts. He must make some enquiry and understand the aspect of Brahman, because this is the basic cause for the relationship between man and man.