This is an analytical and descriptive comparative study between the philosophical rational perspective and the Islamic religious perspectives about the unseen world related to the beginning, the afterlife, and man, in order to show the extent of connection and difference between the two perspectives. Through reviewing the emergence of Greek metaphysical philosophy and its development by Islamic philosophers and their metaphysical philosophical opinions, as well as the appearance of the Abrahamic religions and their integration with the pure Islamic religion and reviewing its Qur'anic and traditional (Hadith) texts, we have concluded that the Islamic philosophy is superior to the Greek philosophy, especially in the subject of the divine unity of acts monotheism and the afterlife. We also have got to that the both the philosophical and Islam perspectives are similar, but with the Islamic perspective being distinguished by many details in the subjects of the physical and spiritual monotheism and resurrection, and this is only due to the influence of the Islamic religious perspective on the Islamic philosophy, besides the interest of Muslim philosophers in its texts, in addition to the easy emotional method of religious texts.