Islam is based on five pillars from which the duties arise. These are:

1-) The testimony (shahada) that there is only one God and that Muhammad is His Messenger.
2-) Prayer (salah), which is prescribed five times a day.
3-) Fasting (siyam), which is performed in the month of Ramadan.
4-) Alms-giving (zakat), which is a mandatory contribution for good causes from the wealth of those who are well-off.
5-) The pilgrimage to Mecca (hajj), which every Muslim who is physically and financially able to do so must perform at least once in their life.

All pillars of this building of faith should have the same relevance for a Muslim in order to give the building its proper shape. It is contradictory if someone performs the pilgrimage without fasting or performing the prayers regularly. Furthermore, let us imagine a building that consists only of pillars. One can hardly call it a building. It must also have a roof, walls, and also doors and windows. This part of the building of faith in Islam is formed by moral behavior, which is expressed in virtues such as honesty, truthfulness, patience, and many other qualities. Therefore, a Muslim should not only practice the pillars of Islam but also constantly strive to further develop their character accordingly.