Hajj is like a big trip that very important for Muslims. It's a special journey that Muslims take to a holy city called Mecca in Saudi Arabia. They do this once in their lifetime if they are able to. Hajj is like a big party for Muslims to show their love for Allah (God).
When Muslims get to Mecca, they wear special clothes that are white and simple called Ihram. They wear this because it reminds them that all people are equal and they are focusing on the spiritual side of things, not material things.
During Hajj, Muslims do lots of important things. For example, they go around a special building called Kaaba seven times to show respect and love for Allah. They also walk or run, called sa'āy, seven times between two hills called Safa and Marwa to remember a brave woman named Hajar who searched for water for her baby. Muslims also go to a place called Muzdalifah where they sleep outside and collect rocks to throw at a big stone pillar called Jamrat al-Aqaba, which is supposed to represent the devil. This symbolizes the Muslims' commitment to resist temptation and evil things.
Hajj is a very special and important journey for Muslims, and it helps them feel closer to Allah and strengthen their faith. It's a time to focus on the spiritual side of things, show love and respect for Allah, and think about how to be a better person.