Muslims commemorate the fortieth day after the martyrdom of Imam Hussain (AS) and his companions, called Arbaeen, meaning the fortieth day in Arabic. They all gather around the city of Karbala and Imam Hussain’s (AS) shrine, mourning and lamenting the unfair and cruel war between his comrades and those of Yazid Ibn Muawiyah, which led into the death of those pure men and the bondage of their families. 

This commemoration happens every year around the city of Karbala. Muslims begin to walk to Karbala from other towns. They gather together in groups to pray, and especially to mourn the martyrdom of Imam Hussain (AS).
This walk is a hard one. It takes at least three days and lots of energy and time. So, why do Muslims take that? What is the philosophy behind it? 

To answer our questions, first, let’s have a review of the history behind this walk and then move to the other aspects of this commemoration. 

1. What is the Arbaeen Walk?

The history of Arbaeen walk goes back to the first visitors of Imam Hussain (AS) after his death. On the day of Arbaeen, forty days after the tragic martyrdom of Imam Hussain (AS), Imam’s (AS) son, sister and the remaining members of his family and that of the other martyrs came back to Karbala to lament the death of their dear ones besides their graves.  

Their next visitor was Jabir Ibn Abdullah Ansari on the year 61 AH. Visiting Imam Hussain’s (AS) shrine was a tradition in Shiite culture until a short period after Morteza Anasari’s became the religious reference (Marja’) of Shiite Muslims. It was then lessened for some years and then revived. Some other religious references (Marja’) kept this tradition alive among their followers, until the government of Saddam Hussain, which banned all religious Shiite traditions to be performed publically [1]. 

The tradition was revived after the fall of Saddam, and it is still to be continued. 

2. Why on Foot?

Visiting the holy shrines and going on pilgrimages on foot is not something new or belonging to our age. It’s got a long history, and Adam did the first pilgrimage on his visit to Mecca [2]. It isn’t a tradition just among Muslims either. It is performed in other faiths and religions, too. For instance, Caesar made a vow to his God to go on a pilgrimage to the Dome of Rocks if he won the battle against the Empire of Persepolis (Iran). He performed his vow after his victory [3].

Pilgrimages are highly admired, and their act is seen as a way of getting closer to Allah by Imam Sadiq (AS). Visiting the holy shrines of the twelve Imams (AS) is even more praised, especially the sacred shrine of Imam Hussain (AS). Of course, it’s not these shrines themselves that are of value and importance, but the people who have been buried there. Thus, when one makes a pilgrimage toward these shrines, he/she finds the chance to think more about these great personalities who won Allah’s satisfaction and praise and were Muslims in the real sense of the word. So, in every step that a pilgrimage takes toward Imams' (AS) shrines, especially that of Imam Hussain (AS), he/she is getting closer to a source of spiritual blessing, bringing him/her thousands of virtues and wiping away thousands of vices from his/her mind and soul.

3. What is the Philosophy behind the Arbaeen Walk?

The Arbaeen pilgrimage is not merely a long walk. Instead, it is a kind of movement in which despite being in publics, pilgrims have their own private relationship with Allah and Imam Hussain (AS), which finds a new form of divine immaterial dependence and conformance. Thinking about the goals and the history behind the martyrdom of Imam Hussain (AS), the injustice and cruelty imposed on his family and the devotions of his faithful followers brings about many personal and social growth and improvements. 

Meeting other Muslims, exchanging ideas, and making friendships with Muslims of the other countries is another social outcome of this pilgrimage. One finds out that they are not alone in their faith, and have friends all over the world. They may have differences, but they have one thing in common: Belief in Imam Hussain (AS) and his right cause. 

The last and the most crucial point to mention this great gathering is it's a kind of preparation for the grand reappearance of Imam Mahdi (AS), the awaited savior among Muslims. The Arbaeen pilgrimage is to make the minds and souls ready for this great event. It is said that when Imam Mahdi (AS) reappears, he introduces himself as the son of Hussain (AS) [6], whose fame has reached many people through the Arbaeen Pilgrimage; one of the most significant religious gathering around the world, with the estimated number of 40,000,000 people participating in it, whose news is broadcasted all over the world [5].  

References

1. "The background of Arba'een rally/The importance of Najaf-Karbala rally from the scholar's viewpoint." Fars News. Archived from the original on 16 November 2015. Retrieved 4 October 2015.
2. Hor Ameli, Muhammad Bin Hussain Vasayel-o-Shia, Vol 11, p 132
3. Sobhani, Jafar The Light of Eternity p. 696
4. Kamel-o-Ziyarat: Pp 183, 184 and 185
5. Philipson, Alice (19 January 2015). "The ten largest gatherings in human history." The Telegraph. Archived from the original on 6 October 2015. Retrieved 3 October 2015. 
6. Khademi Shirazi, Mohammad Yad’e Mahdi P16, P132

One of the most discussed words nowadays among politicians, humanitarians, thinkers, and social researchers is the word peace. It’s one of the favorite ideas among Christians and Muslims. Many of the religious activists try to publicize peace as a social manner and act. Islam, as the last religion of Allah, is a religion of peace, as its name is taken from the word Salaam, meaning peace in Arabic. 

On the other hand, Jesus Christ (PBUH) is the other most-followed prophet in the world and one of the chosen ones in Allah's regard. But what is the stance of Islam toward Jesus Christ (PBUH)? Does Islam believe Jesus (PBUH) to be a peace-loving prophet? Here, we are going to bring you some verses of the Holy Quran in praise of Jesus Christ (PBUH) and his peace-loving character. 

1. Jesus Christ (PBUH); A Prophet of Mercy

Believing in a peace-loving God, he treated all the people, whether innocent or sinful, young or old, with mercy and kindness. His amiable attitude not only included human beings but also animals whom he deeply cared for. Thus, wherever he went, he brought peace and blessing to the people, as he puts in this verse of the Quran:

“He has made me blessed, wherever I may be” (19:31)

2. Jesus Christ (PBUH); An Exemplar of a Dutiful Child

The holy Quran always refers to Jesus (PBUH) as the embodiment of a dutiful and devoted child concerning his mother, Saint Mary.  When it narrates the story of his birth and the disbelief of the Jewish sages, the Quran says that Jesus (PBUH) started talking while he was a newborn in his mother’s arms. He told everyone about the mission Allah had given him and then said: 

“…He has enjoined me to [maintain] the prayer and to [pay] the zakat as long as I live, and to be good to my mother, and He has not made me self-willed and wretched.” (19:31-32)

Accordingly, one of the missions Allah has given Jesus (PBUH) is to be kind and respectful toward his mother, which is one of the manifest signs of a peaceful and loving character. 

3. Jesus Christ (PBUH); A Prophet of Wisdom 

When Jesus Christ (PBUH) started spreading the message of Allah to human beings, he began to advise people to be truthful followers and described his mission as follows:

“When Jesus brought those manifest proofs, he said, ‘I have certainly brought you wisdom, and [I have come] to make clear to you some of the things that you differ about. So be wary of Allah and obey me.” (43:63)

Based on this verse, he was there to clarify the ambiguities and to bring wisdom. And that was all he did; he never used anything, but words of Allah and miracles inspired him to lead people toward what is right. 

4. Jesus Christ (PBUH); The Righteous Servant of Allah

Virgin Mary was about to find out about Allah’s blessing upon her in bestowing her with a son, without any man touching her and the angels said:

‘O Mary, Allah gives you the good news of a Word from Him whose name is Messiah, Jesus son of Mary, distinguished in the world and the Hereafter and one of those brought near [to Allah]. He will speak to the people in the cradle and adulthood and will be one of the righteous. (3:45-46)

Also, in another verse of the Quran, Allah refers to Jesus Christ (PBUH) besides other prophets as such:

“And Zechariah, John, Jesus, and Ilyas—each of them among the righteous.” (6:85)

Allah refers to Jesus Christ (PBUH) in the verses above, as his word and one of the righteous ones. But who is a Righteous person? A person characterized by, proceeding from, or following accepted standards of morality, justice, or uprightness and virtues [1]. So, a righteous person is one who is upright, and free from sins or guilt, which ultimately leads one toward peacefulness. 

Finally, the Holy Quran and Islam, as the religion of peace, admire prophet Jesus (PBUH) as the word of Allah and send peace and blessing upon him. In this verse of the Quran, Jesus addresses himself and says:

“Peace to me [Jesus] the day I was born, and the day I die, and the day I am raised alive.” (19:33)

Just as Prophet Muhammad (PBUH&HP) who, according to the Quran, was sent as a mercy to humankind (21:107) and perfect moral virtues, Jesus Christ (PBUH) was also sent to accomplish the same mission; as the prophets before him were also after spreading this peaceful message. Thus, Muslims who believe in all the prophets as the best role models, do not doubt in the peace-loving character of Jesus Christ (PBUH), the blessed son of Mary.  

References:

1. Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000,3,6,7,9,11,14