One of the two types of negative emotional energies (stress), that come at us from outside our personal boundary. The other is called, "loss."
The first line of defense against this negative energy and a force of unhappiness, is the personal boundary itself, trying to block the stress.
Hurt may be emotional, such as the negative, destructive comments of a bully, or it may be physical, such as a bee sting.
If hurt gets into us, it negates an exactly equal amount of well-being - the feeling of having our needs met in a maternal, motherly way. The void left by the absence of well-being, especially if the amount of hurt is greater than our amount of well-being, is called, "anger," which can metabolize as sadness and depression, aggression, or their derivatives, revenge, jealousy, or hatred.
