Emerich Coreth’s contribution lies mainly in his employing the act of questioning as the appropriate starting point for metaphysics. To systematically comment on his first chapter of his main work, Metaphysics, this article successively studies the transcendental method he uses, the question as the starting point, and the horizon of Being which the question anticipates. Coreth’s transcendental method operates on two movements, namely, transcendental reduction and transcendental deduction. The former means the movement from the ‘conditions of possibility’. On the other hand, the latter concentrates itself mainly on the movement from the ‘conditions of possibility’ to the essential structure of the `act’, which is then expressed through certain ‘contents’. The question is used as the correct starting point because it is undeniable, most primordial, presupposing nothing, and basing itself on experience without being confined completely on the empirical level. When one pays attention to the act of questioning, one will discover from within the act a dynamic anticipation which surpasses every finite empirical horizon and opens itself to the horizon of Being which transcends everything and encompasses all things.