Another "Best Pictures of 2007" from Reuters
From the collection, this gruesome photograph is of an Indian Shia Muslim flagellating himself during a procession on the final day of the week-long annual Ashura mourning rite, the highpoint of the Shia religious calendar, in Old Delhi. The self-flagellation is a ritual to mourn the martyrdom of Hussein ibn Ali, the grandson of the prophet Muhammad at the Battle of Karbala.