Now, he continues doing that until the age of 25. At 25 years old, something very interesting happens. A very wealthy widow, arguably one of the wealthiest people in all of Mecca, who runs a vast trading enterprise, Khadijah, who is 40 years old, she employs Muhammad, and apparently is so impressed by his honesty, by his ability to be trustworthy, that she proposes to him. And remember, she's 40, this would be her third marriage, and he is 25, and he accepts the proposal. Now, this is significant, because as we'll see in this video and the next, Khadijah is the first one to follow Muhammad or believe in Muhammad's revelations. So he continues to work with his wife, arguably work for his wife, and then in 610, he's now 40 years old, he is praying in a cave on the outskirts of Mecca, and while he's praying, he is purported to get his first revelation from God, according to Islamic traditions. And that first revelation, and this is the mountain where it is purported to happen, the mountain of light, Jabal al-Nur, this is the cave, Cave Hira.