"Months before meeting the Arabic teacher, he had been in hospital briefly for a psychotic episode that, he says, was a result of isolating himself from friends and family, smoking too much cannabis and, ultimately, a crippling sense there was nothing he could do to improve the plight of humankind."

http://www.theglobeandmail.com/news/british-columbia/the-convert-a-young-bc-man-comes-toallah/article34274818/