Surat Al-Kahf is a Surah that directly refers to the system of the Mahdi. It entirely explains the system of the Mahdi. But it does so with symbols, with a covert manner of telling. I mean it doesn't do so openly, with overt wording. Those rational ones, those with profundity, those who have the power of reflection will decipher the secrets in the Surat, those symbols by the leave of God, with the revelation of God. - Harun Yahya