"Why should caring for others begin with the self? There is an abundance of rather vague ideas about this issue, which I am sure neuroscience will one day resolve. Let me offer my own "hand waving" explanation by saying that advanced empathy requires both mental mirroring and mental separation. The mirroring allows the sight of another person in a particular emotional state to induce a similar state in us. We literally feel their pain, loss, delight, disgust, etc., through so-called shared representations. Neuroimaging shows that our brains are similarly activated as those of people we identify with. This is an ancient mechanism: It is automatic, starts early in life, and probably characterizes all mammals. But we go beyond this, and this is where mental separation comes in. We parse our own state from the other's. Otherwise, we would be like the toddler who cries when she hears another cry but fails to distinguish her own distress from the other's. How could she care for the other if she can't even tell where her feelings are coming from? In the words of psychologist Daniel Goleman, "Self-absorption kills empathy." The child needs to disentangle herself from the other so as to pinpoint the actual source of her feelings."