Once in their lifetime, Muslims are commanded to go for pilgrimage to Mecca provided there are no financial or physical constraints. Every year, about two million Muslims from different parts of the world converge on Mecca to perform the pilgrimage. This provides a unique opportunity for Muslims of different nations and diverse backgrounds to meet one another. During the rituals, pilgrims wear white clothings and stand close together in the worship of the one Lord. Islam recognizes no racial or ethnic boundaries. The hajj is the perfect example of the oneness of people of all races and nations, worshipping and serving the Lord.
The hajj is marked by the Eid al-Adha, a festival which is marked with prayers and other rituals performed by the pilgrims in the vicinity of Mecca. These rituals are meant to purify the faithful inwardly. The day is also marked in Muslim communities in different parts of the world with celebrations and exchange of gifts. This day, together with the Eid al-Fitr, a feast day commemorating the end of Ramadhan, are the two main festivals of the Muslim calendar. The Muslim weekly holiday is on Fridays when congregational prayers are held at noon.