Another word which has a connotation with Sufism is the Arabic word Saf which means pure. All the tragedy in life comes from the absence of purity, and as pure really means to be natural, the absence of purity means to be far from being natural. Pure water means that no other substance is mixed with it, in other words that it is in its natural condition. Sufism, therefore, is the process of making life natural. One may call this process a religion, a philosophy, a science, or a mysticism, whatever one wishes. All the religious teachers who have come to this world at different times have brought this process of purification in the form of a religion. It is not a new process, it is the same ancient process that the wise of all ages have bestowed. If anything new is given in it, it is the form in which it is presented to suit a certain period of the world.