Jung is suggesting something counterintuitive: our annoyance isn't simply evidence that others are flawed—it's a mirror showing us our own buried values and sensitivities. When your colleague's chattiness grates on you, or your friend's caution frustrates you, you're often meeting your own disowned qualities: perhaps the spontaneity you've learned to suppress, or the boldness you've deemed reckless. This reframing transforms irritation from a dead end (complaining about difficult people) into genuine self-knowledge, if you're willing to ask yourself what exactly stung and why.