Muslims believe that the present life is a trial in preparation for the next realm of existence. The question of whether there is life after death does not fall under the jurisdiction of science, as science is concerned only with clarification and analysis of sense data. All the Prophets of God called their people to worship God and to believe in life after death. Death is a reality in which all human beings believe. In Islam, death is not an end to an existence; it is a passage, which takes us from this world to the hereafter—the actual purpose of our creation and the result of our work in this life. The notions of resurrection, heaven and hell play an important part in Islam since the time of Muhammad. Both the Qur’an, and the Hadiths refer to the afterlife. Islam teaches that death is not the end of a person’s existence. Rather, it acts as a passageway to connect one to the afterlife. A person’s ultimate destination—either Paradise or Hell—is determined by an individual’s actions during life, and whether he or she lived in a way that was pleasing to Allah. There are primarily two sects within Islam (Shiite and Sunni) that holds different views on the idea of death and life after death.