"The great point in Christianity is the search for an independent content for spiritual life which, according to the insight of its founder, could be elevated, not by the forces of a world external to the soul of man, but by the revelation of a new world within his soul....The search for a purely psychological foundation of human unity becomes possible only with the perception that all human life is spiritual in its origin."
~ The Reconstruction of Religious Thought in Islam (Allama Iqbal)