Islam is a religion of the soul's harmony and heart's intimacy, but most of the people do not know this reality. In the era of Muslim Caliphs, the freedom of non-Muslims, who had enjoyed with a free living status, protection and safety in Muslim states, was not in return for paying the capital tax. The taken tribute from them was not the price of their freedom, but was for the integrity of the Righteous justice between them and Muslims to protect them and their family members were living with Muslims side by side in the society and were not involved in military services to defend a nation...