And that's all that's necessary in order to convert. Now the other key element of Islam, the second, you could say, of the five pillars, is this notion of prayer. So Muslims pray five times a day at dawn, noon, in the afternoon, evening, and night, and they face in the direction of the Kaaba, which is based in Mecca, which once again, they believe that Abraham constructed with his son Ishmael, who they believe that the Arab people are descendant from. Now what's interesting about this, this has a lot of parallels with the five times a day prayer of the Zoroastrians, including the ritual washing of your body before each prayer. Now the third pillar is charity, and it's called zakat. And this is customarily 2.5% of wealth. Now 2.5% might not sound like a lot, but this isn't of income, this is of wealth.