A veiled Shi'ite pilgrim takes part in a procession during the Arbain religious ceremony in Kerbala, 110 km (70 miles) south of Baghdad, March 8, 2007. More than a million Shi'ite Muslim pilgrims poured into Iraq 's holy city of Kerbala to mark Arbain, the end of a 40-day mourning period since Ashura, which marks the death of Prophet Mohammad's grandson Imam Hussein in 680AD.