Eid Al Mab'ath is an "auspicious" day for Muslims worldwide.  It's the day on which Holy Prophet Muhammad received his "prophetic mission, "and it is believed that "his prophet-hood commenced" from that day onwards.  He was aged 40 at the time, and spent a significant amount of his time meditating in "solitude."  He would often seek out caves, one in particular, on Mount Hira, where his prophet-hood began.  He remained there for days, and sometimes weeks on end in devotion to prayer.  During the month of Ramadan, he was up in the cave where he would fast and pray throughout this period.  The entrance to Hira cave is a site located outside the holy city of Mecca, which attracts millions each year. For this particular day on the Muslim calendar, Muslims around the world join in the celebrations.  In Iran, ceremonies are held in the capital, Tehran, as well as other cities across the country.  To mark this much-revered occasion, celebrations are held on the 27th day of Rajab on the lunar calendar.  Eid Al Mab'ath is a national holiday in Iran, and the nation sees the gathering of Muslims from all over Iran, to the holy cities to join in the religious festivities. Mashhad and Qom, in particular, have a massive influx of Muslims each year at this time, who prayer and celebrate with one another on this day. The mosques are decorated before the ceremonies as there is a lot of preparation involved in this occasion.  On the streets, people congratulate one another, while handing out sweets, all in good cheer.  Religious ceremonies and speeches are held across the country for all Muslims.  Not only do they have formal ceremonies, but fun and games too. In the North Khorasan province, in the Northeastern parts of Iran, outside the city of Bojnord, the local Muslims host games and musical festivities as they enjoy Eid Al Mab'ath.  Games are played by men, women and children so that the whole family can join in.  They have all sorts of ball games, which are also played by women.  They dress up in colorful outfits with floral garlands fitted over their hijabs.  While they're playing, you'll see them run around in their beautiful hand – embroidered skirts across open grounds.  It doesn't stop there. The ladies also take part in tug – of – war games.  Groups of men gather in traditional Iranian outfits as they play music throughout the day, and can often be seen walking through the crowds playing their instruments and singing.  It' quite a day of festivities in Bojnord. So, this is how Iranians, celebrate their national holiday each year, making it memorable and significant for all.