One NVC principle is "stimulus vs cause" - one may be the stimulus but never the cause of another's feelings. When we're upset this principle can help us express pain without blame. However, when others are upset it's easy to slip into blaming them using this principle. Instead, we can hear their pain with care and heartfelt mourning - without guilt nor defensiveness, and whether or not we agree. All this is important if we're sincerely applying compassion. Read on for more.