When you kill a beast, say to him in your heart: ~By the same power that slays you, I too am slain, and I too shall be consumed. ~For the law that delivers you into my hand shall deliver me into a mightier hand. ~Your blood and my blood is naught but the sap that feeds the tree of heaven.
Follow your heart. Your heart is the right guide in everything big. Mine is so limited. What you want to do is determined by that divine element that is in each of us.