Black Elk and Lame Deer were Heyoka which does not mean that you literally say and do things backwards in a humorous manner but whose spirit helpers are the powerful thunderbeings. Lame Deer was the last true Heyoka. If you look at this world most things flow in a clockwise cycle but you also have that small element in life that goes the opposite direction. There are things that Black Elk and Lame Deer did and said things in a way to divert the tensions at that time when the pipe way was under attack.