Hejaz is a place in Saudi Arabia where many important Islamic sites are located. It is like a special place where people go to learn about Islam and to visit places that are important to their faith. Some of the sites in Hejaz include the cities of Mecca and Medina, where the Prophet Muhammad lived and where Muslims go to make a pilgrimage called Hajj. People go to Hejaz because they believe it is a holy place where they can connect with their religion and learn more about its history. It is like a special place for Muslims to go and feel closer to Allah.