When we think of the different religions which are known to humanity, we shall find that each of them brought to the world the message of love in some form or other. And now the question arises, who brought religion in the world? And the answer is that religion has always existed in the heart of man. Religion is the outcome of the heart, and among all races, however primitive, a certain religion has existed, perhaps incomprehensible to people more evolved in different directions. For religion is instinctive, and as it is instinctive, not only in the world of man but also in the lower creation one sees a glimpse of religious tendency. For instance, one finds among pet animals, such as the dog, the cat, or the horse, some such faithful creatures, and sometimes one has such experiences with them that one cannot today expect from mankind.