One of life’s first-and-foremost “double-edged swords” --- something that can “cut both ways” as far as definition and desirability is concerned. While it can refer to a welcomed stack of purchase-agreements that will bring wealth and prosperity to its recipient, it can also mean stern/irritable directives to do/not do something that its recipient hates/wants to do.
Travelling company salesman: Boy, did I get two big orders today!
Boss: Great! What were they?
Salesman: Well, the first one was, “keep out” and the second one was, “stay out”.