Originally Posted by
justinkl75
I think that if you could invoke a demon these beings must be very powerful and could give you almost anything you desired if you gave it something in return, like a sacrifice, which is what it would want because the blood has a lot of energy and power. That to me is a rational reason for these people wanting to invoke demons, power. There is a lot of things humans don't know and can't do. If you give a lot of demons a lot of things or do them a lot of favours, maybe they would give you a lot of power.