Islam is the religion of mercy, and as such it provides a code of practice for every aspect of human life. The foundation of this code rests on the principle that human beings have been given the choice to decide the course of their actions, and they will be rewarded or punished based on the choices they make in the life of this world. Inherent to this system is the recognition that although humankind is capable of great devotion and obedience to the Creator, people are also prone to disobeying Him and committing sins, not only to the detriment of themselves but others as well. It is for this reason that Islam provides expiation for sins, which have the potential to spiritually cripple a person and, in some cases, disrupt the tranquility of society. These acts of expiation are practical obligations enacted by the Creator that begin the process of negating the deleterious effects of sins and even serve as a deterrent to future transgressions. In the end, they ensure not only personal balance and harmony but the balance and harmony of society.