The Prophet Mohammed maintained a regular practice of retreat into meditation and prayer. He did so for 15 years. After the 15th year of regular retreats and meditation in the cave of Hira at Jabal-al-Nur, the mountain of light, he reached a state of spiritual purification and awareness. Rather than his customary one month, he spent six months praying day and night and fasting for long periods. He would come out of the cave for short walks in the desert and then return. It was here that Divine revelation came to him and the first verses of the Qu’ran revealed.