One should know,” he wrote, "that jihad is an advantageous and beneficial institution. Mankind derives benefits from its advantages in various ways, just like rain, the advantages of which are imparted upon both plants, animals and men.” Barelvi promised that if Muslims waged jihad, they would receive "the blessings of heaven,” including "timely downpour of rain, abundant vegetation, growth of profits and trade, absence of calamities and pestilences, growth of wealth and presence of men of learning and perfection.