Arba’in is a day of pilgrimage to the shrine of Husayn in Karbala, Iraq. Pilgrims arrive there in large numbers, often on foot. The most popular route is Najaf to Karbala, as many pilgrims first travel to Najaf and then walk from there to Karbala, some eighty kilometers away, which usually takes three days on foot. Along the way, volunteers provide the pilgrims with free meals and services. Indeed, some have considered generosity and hospitality to be the main features of the Arba’in pilgrimage. When they finally reach the shrine of Husayn in Karbala, pilgrims recite the ziyara of Arba’in, a supplication for this occasion.