All religions share a common root, which is limitless compassion. They emphasize human improvement, love, respect for others, and compassion for the suffering of others. In so far as love is essential in every religion, we could say that love is a universal religion. But the various techniques and methods for developing love differ widely between the traditions. I don’t think there could ever be just one single philosophy or one single religion. Since there are so many different types of people, with a range of tendencies and inclinations, it is quite fitting that there are differences between religions. And the fact that there are so many different descriptions of the religious path shows how rich religion is.