The highest general rank within the Bene Gesserit Sisterhood, attained through surviving the Water of Life ceremony. A Reverend Mother has transmuted the deadly poison within her own body, gaining access to Other Memory and an extraordinary plane of consciousness and prophetic intuition. Upon initiation, she chose a three-part name incorporating her family name, a male name from the original Bene Gesserit order, and a name honouring a famous woman in the Sisterhood's history. Within this general title existed four specific ranks: Regular, Proctor, Proctor General, and Proctor Superior.