" The heartbeat steadied, their minds opened … and the flow began, like a torrent through an open dam. Lobia poured her life into Anirul, transferring memories, aspects of personality, every bit of data contained in her long life. One day, Anirul herself would pass the information to another, younger Sister. In this manner, the Sisterhood’s collective memory was amassed and made potentially available to all Bene Gesserit. "
― Brian Herbert , House Corrino (Prelude to Dune #3)