So, Islam is realistic and practical when it deals with man...

So, Islam is realistic and practical when it deals with man in a way which fits his true nature as a human who makes mistakes and. then goes straight or deviates (from the right path) and then follows the right way. Therefore both the Holy Qur'an and the noble Prophetic traditions emphasized this fact, for man, in order to remind him about Allah's grace for him and also to recognize why does he commits sin? Why does he repent?

And what is his relationship with Allah when he disobeys, and then repents; deviates and then asks for forgiveness. Consequently the following text explains and discovers for man, his true nature, his relationship and the degree of his harmony with the will of Allah, the Almighty: “... and when it not for Allah's grace upon you and His mercy, not one of you would have ever been pure ...” (Holy Qur’an, 24:21) “Have you not considered those who claim themselves pure?

No, Allah purifies whom He wills; and they will not be wronged the skin of a date-stone.” (Holy Qur’an, 4:49) “And I call not myself sinless; surely (man's) self is wont to command evil, except those on whom my Lord has mercy.

Surely my Lord is Forgiving, Merciful.” (Holy Qur’an, 12:53) “And certainly We created man, and We know what his mind suggests to him and We are nearer to him than his life-vein.” (Holy Qur’an, 50:16) These verses declare that the human self is wont to command evil and, also, inclines to be independent in this existence and to be separated from Allah's will since it succumbs to illusions, devilish insinuations and Satanic temptations in order to be a god on this land, but it is Allah's mercy which overshadows this miserable creature and overwhelms it by Divine love and forgiveness so that it may raise, once again, from its suppression and collapse and continue on the way of perfection and love of the good.

It awakens, in its depths, the sense of conscience and strives to go beyond the circle of darkness into the world of light and to return towards Allah to achieve its aims in reaching Him, and the everlasting eternity and happiness.