among different theories concerning the relation between spirituality or ethics and politics, the acceptable one is the inseparability of spirituality and politics. Because, based on a rational conception of the world, there is not any convincing justification for separation between the two categories. In a true understanding of religion, there is no separation between religion and politics and all religio-political principles, teachings, values must be simultaneously ethical, rational and just. Therefore, there is no space for any type of immorality, irrationality and injustice; because, they are against the world’s objective; meaning man’s highest perfection. If all are not just towards one another based on the Divine Revelation, man and societies cannot improve their spiritual aspects of life. The schools of thought which consider religion’s objective as mere individual salvation, neither pay attention to religion’s socio-political aspects, nor understand its socio-political dimensions. In between, the political systems and politicians that intend to acquire, preserve and increase more and more power, and know that the Divine Books and the Holy Prophets are the greatest obstacles on their way, try to hide the true understanding of religion and keep people ignorant about them. For them only the theories, which can explain dirty hands and legitimize the absolute authority of domination of wealth and power, are very beneficial and should be supported.