Evil is in opposition to life. It is that which opposes the life force. It has, in short, to do with killing. Let us not forget this. When I say that evil has to do with killing, I do not mean to restrict myself to corporeal murder.
Evil is also that which kills spirit.
It is possible to kill, or attempt to kill one of these attributes, without actually destroying the body. Goodness is that which promotes life and liveliness.