Lastly there is another step forward, and that is revelation. It needs a certain amount of spiritual progress to believe that there is such a thing as revelation. Life is revealing, nature is revealing, and so is God; that is why God is called Khuda in Persian, which means self-revealing. All science and art, and all culture known to man have come originally, and still come, by revelation.

• In other words a person does not only learn by studying, but he also draws knowledge from humanity.
• A child not only inherits his father's or his ancestors' qualities but also the qualities of his nation, of his race,
• so that one can say that man inherits the qualities of the entire human race.