An aerial view of the holy Muslim Shiite shrine of Imam Moussa al-Kadhim as pilgrims gather during preparations for the annual commemoration of the saint's death in the Shiite district of Kazimiyah in Baghdad, Iraq. Photo taken on May 23, 2014. (Photo / IC) 

Shiite pilgrims pray at the Imam Moussa al-Kadhim shrine during preparations for the annual commemoration of the saint's death in the Shiite district of Kazimiyah in Baghdad, Iraq, on Saturday, May 24, 2014. (Photo / IC)

Shiite pilgrims beat themselves as a sign of grief outside the holy Shiite shrine of Imam Moussa al-Kadhim, in Baghdad, Iraq, May 24, 2014. (Photo / IC)