"If forgetfulness and heedlessness mark the basic fault of human beings, dhikr (remembrance) designates their saving virtue. Just as forgetting God leads to the painful chastisement of being forgotten by him, so also remembering God leads to the joy of being remembered by him: "Remember Me, and I will remember you" (2:152)... God sends the prophets in order to remind people of the Covenant of Alast. They do so by reciting God's signs and mentioning their debt to him. People should respond to the prophets by remembering God, an act which demands that they mention him in prayers of glorification and praise (thus affirming both his tanzih and his tashbih). Those who respond in this manner are the people of faith, since to have faith is to recognize or remember the truth of tawhid in the heart, to mention it with the tongue, and to put it into practice by following the instructions brought by the prophets.Those people who fail to make the correct response are the truth-concealers. Although they recognize the truth in their hearts, they deny it with their tongues and refuse to follow the prophets' instructions. This, in short, is the drama of prophecy and the human response. All of it is connected explicitly by the Koran to the word dhikr, or to closely related words derived from the same root (such as dhikra, tadhkira, and tadhakkur)."