The Foundations And Concepts of Islam
REALITY OF DISBELIEF
On the contrary is another man, who was born in submission to Allaah and lived all his life in submission to Allaah but never felt this submission or had any idea of it. He knew not his Lord, nor believed in His Law or followed His Messengers. He did not use the knowledge and intellect that Allaah gave him to recognize his Creator Who carved for him his ears and eyes. He rather denied His existence, he disdained His worship and refused to submit to His Laws in matters of his life in which he is given the right of disposition and choice. Or he associated others with Him in worship and refused to believe in His signs that indicate His Oneness. Such a man is a Kaafir. For the meaning of 'Kufr' in the language, is 'to cover and conceal'. So this man is called a 'Kaafir' for he conceals his nature and covers it with ignorance and insolence; and the nature of the world and that of his own self are hidden from him. You therefore, see him using his intellectual and logical power only in that which contradicts his nature. He would not see anything but that which could corrupt his nature. It is now left to you to estimate the extent of deep error and clear transgression to which the disbeliever has degenerated.
This Islaam which you are required to practice is not a difficult matter, but very easy for whomsoever Allaah makes it easy for. Islaam is the religion which all this universe follow.
"And to Him submitted all creatures in the heavens and the earth, willingly or unwillingly"
"Truly, the religion with Allaah is Islaam"
It is submission of one's whole self to Allaah as He, Great is His praise asserts,
"If they dispute with you (O Muhammad) say: I have submitted to Allaah in Islaam and have those who follow me."
The Messenger of Allaah also explained the meaning of Islaam when he said, "It is to submit your heart to Allaah, to direct your face to Allaah (in worship) and to give the obligatory Zakaah."