The main point is that a young man who studies in a Yeshivah should know that he ought to learn diligently, keep Mitzvos scrupulously, and not seek kashes [challenging questions]. Even if something is not yet so clear and precise for him, he should nevertheless do it, and with time, when he learns properly, he will come to understand that which is not understood.Sometimes (but not always!) when we focus overly on kashes—i.e., not just questions seeking information, but challenging questions that contain a certain degree of doubt—the answers davka elude us. The reason for this is not that the answers do not exist, as the evil inclination would have us believe—they do. Rather, the very act of being preoccupied with the kashes derails the person from what should be his proper focus, and thus prevents him from truly finding the answer amidst the web of confusion.
Paradoxically, sometimes the way to go about finding the answer to such questions is by not allowing oneself to dwell upon them and let them weigh one down. Rather, one should make a mental note of the questions, and continue learning Torah and keeping Mitzvos, and with time and the help of Hashem, the questions will be resolved.