Initiation /(?)/

In·i·ti·a·tion

Initiation

n.
  1. The act of initiating, or the process of being initiated or introduced; as, initiation into a society, into business, literature, etc.
  2. The form or ceremony by which a person is introduced into any society; mode of entrance into an organized body; especially, the rite of admission into a secret society or order.
    Silence is the first thing that is taught us at our initiation into sacred mysteries.