The human nature means the soul and the body. A man without a spiritual life is no longer a man. Equally, whoever proclaims that spiritual training can delete the materialistic demands of that body is a devil in the clothes of a saint. Can he give up sleeping? Is he ready to destroy his body and to be a soul flying in the world of ideals? The holy Quran says:"O you mankind, a proof has already come to you from your Lord ; and We have sent down to you an evident light. So, as for the ones who believed in Allah and firmly adhered to Him, then He will soon cause them to enter into a mercy from Him, and Grace, and will guide them to Him on a straight path"This Grace and mercy from Allah Al-Mighty is true for the believers in life and in the day after. The heaven is the endless grace and mercy. It is not only a spiritual heaven but the materialistic pleasures are innumerable there. Equally, in our life Islam does not forbid materialistic pleasures, but Islam is a unit of enjoying our lives and, more important, obeying our God and creator. Thus, without Islam there can never be a balance and harmony between the soul and the body. Who do not believe in that can do a comparison between Islam and other doctrines and the result is undoubtable.