The 5 Pillars of Faith (The Hajj)

The Five Pillars: 
The 5 pillars are the 5 duties each Muslim has to perform. The five pillars of Islam help them put their faith into action. 
These 5 duties are: 

• Shahadah: declaration of faith
  "I bear witness that there is no god, but God; I bear witness that Muhammad is the prophet of God." By reciting this, a person can enter the Islamic faith.
• Salah: prayer
  Muslims are required to pray five times a day, washing themselves before prayer and facing in the direction of Mecca while praying.
• Zakat: giving a fixed proportion to charity
  Muslims are required to give away a percentage of their earnings to less fortunate people, regardless of their religion.
• Saum: fasting during the month of Ramadan
  Muslims fast for one lunar month each year, a period called Ramadan. During this time, Muslims reflect on their behaviour and aim to purify their thoughts.
• Hajj: pilgrimage to Mecca
  If it is financially possible, Muslims are required to travel to Mecca once in their lifetime.

Carrying the five pillars out shows that the Muslim is putting faith first.