For centuries, people have honoured those who they respect and place above themselves. This could be their ancestors, a spirit animal, or a God. They would honour them with alcohol that they like, food, or even blood.
Honouring the God (s) is something that continued through the Christian era by being a part of Christianity. Lambs would be sacrificed and blood would be given. I personally am glad the Christians adopted this as their own because if the Christians didn't like something, it was often destroyed.
Now to you! How do you honour your god/dess or you spirit? Do you offer alcohol? Blood perhaps? Do tell.