Stick 58 hands you Duke Mu of Qin at his worst moment: an ambitious ruler who had every piece of information he needed, including a senior advisor weeping as he sent his own sons toward what he knew was a doomed campaign. The Duke heard the warning and rode past it anyway. The verse you drew is not a forecast about your career. It is a mirror held up to the moment, before the mountain pass, when you are still choosing whether to listen.
In a career reading, this stick almost always lands when you are already half-aware that something in your current plan does not add up. Maybe it is the timeline a manager keeps insisting on. Maybe it is the role you are about to accept where one detail keeps catching in your throat. Maybe it is the side venture where two trusted people have, in different words, said the same careful thing, and you have explained around both of them. The discomfort you felt reading the verse is the data. Jian Shu's voice, in your story, is already speaking; the question is whose face it wears.
A Poor grade here is not a curse on your ambition. It is the stick saying that the cost of pushing forward unchanged is high, and that the warning has already been delivered to you, probably more than once.