In the name of Allah, the Beneficent, the Merciful All praise belongs to God, and his greetings and salutations be upon His Prophet Muhammad and his Household, the best and the purest creatures (p.b.u.h.).The tragedy of Ashura has been a shock to the souls and consciences of human beings, and raised the emotions of the Muslims to expand their social activities.In that event the emotions and reasons of people were injured. The tears and mourning run through their faces; the hearts were drowning towards the place of martyrdom of the sons and househoulds of the holy Prophet and divine messenger. The love and affection of the Muslims, all those who trusted in the message of their grandfather, the holyMuhammad, were directed toward them; and caused the people to come nearer to each other.This terrible tragedy has always injured the souls of the pure human beings during the history, which will never recover. By the passage of time, more dimensions of the calamity become apparent. And, at the same time, the divine virtues and characteristics of the martyred innocent persons becomes more apparent to the generations and communities moreand more.The Muslims reminded of the meaningful word of their holy Prophet who said, "Hussain is from me, and I am from Hussain!" This valuable tradition was a witness about the beginning and continuation of the pure religion of Islam. It began with the divine message brought by the holy Prophet, and continued by the terrible martyrdom of Imam Hussain (p.b.u.h.). By that great sacrifice of the holy Imam, his household, and his prominent companions, he guaranteed the future survival of Islam.