Go up Maida Vale (A5) towards Cricklewood, keep heading straight up Kilburn High Road, and just before you get to Cricklewood Broadway, take a left on to Chichele Road. At the end of the street, you'll see a green double-domed mosque (its basically a refurbished church)...... if you go upstairs, on saturdays there's a man known as Shaykh Abu Bakr (Babakr Ali Babakr) - he leads an ecstatic group of rhythmic sufis who do these weird dance dhikr sessions called 'hadhra'.... His methods are unorthodox, but legend has it that he's the best in the business, he is not a huckster or a quack and does not charge for his services. He is a mathematician (or statistical theorist) in his professional life, but was trained in the ilm 'ul Ghayb by a long line of desert Shayukh stretching back to Abdal Qadir Jilani. it is said that he turns away the vast majority of people who come to him for 'healing', advising them instead to seek clinical treatment.