How Metta Works

Carly is asking how metta works. It's a big question, and one to which I wouldn't trust my relatively little understanding to respond without the help of someone more experienced and wiser than myself. I checked to see what Sharon Salzberg might have to say on the topic, and found her essay on metta to be rich and satisfying. Let me refer you to it. Clearly, there's a bit more to it than "sending out good vibes"! I plan to re-read it myself. And to consult with Access to Insight to see what Than Geoff might have to say.