The wealthy pilgrims on their pilgrimage day, and sometimes the water carriers would bring water instead of water to quench the thirst of the people, as is done with water on the road to Mecca. Al-Maqrizi, in his "Khitat," mentioned a list of Al-Mustansir's treasures that would evoke wonder; and so do the infallible, ascetic, pious Imams for whom people were created and by whose guidance no guide is guided!! Among the spiritual influences of the Fatimids was Sayf al-Dawla al-Hamdani, who was also a Shi'ite. He was renowned for his support of science and literature, and in his court was Al-Farabi, the great philosopher, who was famous for mathematics and medicine, but his writings in these fields indicate that he reached an intermediate level. He was, however, distinguished in the sciences of astrology and music, and he wrote two books on music. Then he also wrote three other books on it, the most important of which is "The Great Book of Music." It is mentioned about him that he once attended Sayf al-Dawla's council, brought out lutes, and played them. Everyone in the council laughed. Then he played another melody, and everyone cried. Then he rearranged them and played a third melody, and everyone fell asleep, even the doorman. Some of the common people still sing some of the melodies attributed to him, and Ibn Khallikan considers him the greatest philosopher among the Muslims.