In several mystical traditions (including Huna, Kabala, and Feri) the fetch is one of the three souls which along with the dense, physical body (AKA the goof) constitute a human being.

The fetch has two primary functions. First, it is responsible for sorting, storing and retrieving long-term memory. The more frequently the fetch traverses a particular path of a person's memory network, the more easily the memories accessible via that path can be returned. Second, the fetch is responsible for storing, regulating and releasing the manna or psychic energy used by an individual to create, maintain and alter consensus reality.

The fetch is located in the chest and is that part of the self which enjoys the physical aspects of our being. The fetch has roughly the intelligence of any domesticated mammal.

The fetch is called the unihipili in Huna and the nephesh in the Kabala.