"He flung himself from the room, flung himself upon his horse and rode madly off in all directions"

The quote is explaining a guy who is in a state of severe emotion. He is so overwhelmed that he is not able to stay in the room and instead he rushes out, leaping onto his horse and riding away in a wild and frenzied manner. The phrase "in all instructions" implies that he is not heading throughout particular, however is instead trying to leave his existing scenario. This could be translated as a sign of desperation, as the man is trying to get away from his feelings and the situation he remains in. It could also be viewed as a sign of impulsiveness, as he is not believing plainly and is instead acting upon instinct. The quote communicates a sense of urgency and chaos, as the man is not taking the time to analyze his actions and is instead acting in a rash and unrestrained way.