This text examines the essence and deeper meaning of questioning, moving beyond its everyday practical understanding. Every question simultaneously asserts something and inquires about something, where errors in the underlying assertions can obstruct the path to a correct answer. The fundamental nature of questioning lies in its relationship to the unknown and the uncertain—to something the inquirer does not possess yet finds indisputably important. A crucial distinction is made between the merely unknown, which ceases to be such once it is discovered, and a true mystery, which remains a mystery even after being recognized. The profoundest sense of questioning is not to seize a definitive answer or gain control over the subject to eliminate its mystery. Instead, the goal is to find a path toward what cannot be conceptually or non-conceptually grasped. Therefore, the objective is not to terminate the process with a final answer, but to penetrate further into new inquiries. The ultimate meaning of questioning is the continuous act of questioning itself, fostering a perpetual engagement with the inexhaustible.