Assume your rightful place in the hierarchy

Cole, Sikes: I can't take that chance.

Sikes: Ooh, it's kinda eerie, isn't it? How I know you better than you know yourself. The student has surpassed his mentor.

Cole: I was never your mentor, Sikes.

Sikes: By reputation you were. By your legend. It'll be an honour to kill you. (He tucks his athame in his belt.) And assume your rightful place in the hierarchy.

What does "assume your rightful place in the hierarchy" mean?