The teacher's task is to guide the student to maturity: to a place where they no longer need guidance. The teacher's maturity is an ability to let go of the student in the understanding that all teaching is open to interpretation (and therefore misinterpretation). Each of us sees the work (works the work) differently, and the teacher must admit that even he cannot foresee where it will go, neither the student's and certainly not his own. There is, hopefully, always the possibility, if not the certainty, of additional, possibly superior, input at a future date, which will change everything.