The message that we should like to communicate to the reader does not concern the priority or the superiority of one or another religion, but that the progress of the human spirituality – originating in certain archetypes found in people from different geographical areas and historical periods – has a universal nature. Whenever we found it possible, we resorted to sources outside Indian history and geography in order to highlight this universal feature which is the core of man striving to come closer to God and Truth.