Durance

A Durance is a Forerunner device designed to contain the extracted memories and personality impressions of an individual.

History
Durances were a key element of Forerunner funeral proceedings. Upon the death of a Forerunner, their last memories and mental patterns were stored inside a time-locked Durance. The Durance and a bit of plasma from the immolation of the body were then presented to the closest family members of the deceased. Durances had a half-life of a million years. Their resting places were closely guarded by the family, such that the violation of a Durance was considered sacrilege.

The Promethean Knights' essences are also contained in a form of Durance, one of which, named by the Covenant as the "Didact's Gift", was recovered and studied by the UNSC during the Requiem Campaign.

On X50, the artificial moon of Draetheus V, an unspecified type of sublimation device immolated Spartan Edward Davis' body and placed the remains, along with his last impressions, into a Durance. The Durance broadcast Davis' last transmission for help, leading Spartan Sarah Palmer to it. Palmer recovered the Durance and shut it down to give her friend peace.

List of appearances

 * Halo: Cryptum
 * Halo 4
 * Spartan Ops
 * Halo: Spartan Assault
 * Halo: Escalation
 * Halo 5: Guardians
 * Halo: Bad Blood