About the Surah

       So whomsoever Allah wills to guide, He opens his breast (i.e. heart) for Islam. And whomsoever Allah wills to lead astray, He makes his breast (i.e. heart) more and more closed, and constricted, as if he is climbing up to the sky. In this way, Allah covers the disbelievers with the impurity (or His Wrath). (Hence they are unable to accept Islamic belief).