It is the rare instructor or mentor that takes pains to NOT show off their expertise, and model the expected behavior, tools, and techniques of the learner where they are at. It is the classic problem of telling someone the goal, but not how to get there. A common error-mode is repeating "the magic" over and over again, expecting it to sink in; it takes extra effort to decompose the magic into teachable, practicable parts. This teaching effort requires meta-cognition and empathy orthogonal to the effort required to become an expert, which is why expert teachers are a rare and precious gift.