Swami Vivekananda stressed on the positive attitudes of life- love, harmony, service and the like. Some of these concepts find echo in an emerging trend of psychological studies called Positive Psychology. In fact, most of these traits are considered as marks of spiritual wisdom.
Where God is, there is no other. Where the world is, there is no God. These two will never unite. Like light and darkness. That is what I have understood from Christianity and the life of Jesus. Isn't that also Buddhism? Isn't that Hinduism? Isn't that Islam? Isn't that the teaching of all the great sages and teachers?
-Swami Vivekananda