A "ghola" is a type of clone in the science fiction universe of Dune, created from the cells of a deceased individual. Gholas are designed to replicate the physical appearance and memories of the original person, but they often face challenges in regaining their past identities. In the Dune series, gholas are produced by the Tleilaxu, a secretive group known for their advanced genetic engineering. The process of creating a ghola involves complex techniques, and they can be used for various purposes, including espionage, warfare, or even as a means of resurrecting important figures from history.