The happiness from helping others is a kind of inner relief or self-soothe, or the content of our heart.
我们得到的是，心灵的平静，助人为乐的快乐，当然也有可能是内心的解脱，或者自我的安慰，心灵的满足。
2
Sometimes they do this to self-soothe; other times, they do it to stimulate themselves (what’s often called “stimming”).
他们这么做一方面为了抒放自己，另一方面是为了自我刺激（通常被称为“刺激行为”）。
3
But if you self-soothe in destructive ways and have a negative attitude and energy about you, realize that it's not just affecting you, but others too.