According to historical records, Franz Xaver Kappus was a military officer. At this point in his exchange with Rilke, though, he appears to be at the very beginning of his career. And though Rilke doesn’t try to dissuade him from becoming an officer, he does tell him to make sure the occupation doesn’t completely overtake him and deplete his capacity to think and live like an artist. And yet, he
also suggests that Kappus can always take refuge in his own solitude if he ends up feeling overwhelmed by his job. In other words, no matter what kind of professional life he leads, he will always be able to control his personal outlook.