Because of all the land lost to the Muslims, he encouraged them, Christians, to fight and to gain back their power. Besides the believe that Jesus was buried there, he sees that Jerusalem is the key city for development and their hope for a better economy, it has access to the outer world, which they do not, and if they were to get the land of Jerusalem they will be rich and free. It is reasonable that many historians such as Abigail Pfeiffer would make a statement that economic as one of the most significant cause of the crusade. However, right after Urban II mentioned the economic advantages of Jerusalem, he told the people
