If a person believes in the intellectual principles of Islam, he becomes a true Muslim. And these intellectual principles are:

-Having sheer belief in the Tawhid;

-Belief in the Revealed Books;

-Belief in Prophets and Messengers;

-Belief in the hereafter;

-Belief in Destiny;

-Expression of the two statements of Faith;

-Performance of the obligatory Salah;

-Fasting in the month of Ramadan;

-Payment of Zakah;

-Performance of Hajj;

-Abstention from all that is forbidden by Muslim consensus. But he will not reap the fruits of Iman nor be blessed by its bounty or be a complete Muslim unless he adapts the life style of a true Muslim.

Our Prophet Muhammad (Sallallaho alaihi Wasallam) has summed up the characteristics of a true Muslim in one eloquent sentence which states the essence of faith and action in a nutshell: "You should worship Allah as though He is watching you: If you do not see Him, He sees you". This is the essence of Islam. It enjoins upon every Muslim to be God-conscious in all his actions, seen or unseen, serious or non-serious. Verily Allah (SWT), is watching us constantly and is aware of our every move. Therefore, every person who is God-conscious will not embark on any act of disobedience nor will he despair because he will realize that Allah is with him. Thus, a person who is fortified with such a consciousness will not cringe for help from anybody, because he will ask of Allah what he needs. And if a person commits an act of disobedience to Allah ? it is human nature to disobey?he shall repent his action and Allah will pardon him.