In extreme cases, such as when facing immanent death, a Vulcan may be able to transfer their katra to another being via a mind meld. Captain Spock once transferred his katra to Doctor McCoy in this manner; it was later restored to his rejuvenated body via the fal-tor-pan ritual. (Star Trek III: The Search for Spock)
A katra may also be transferred into a special receptacle, known as vre'katra, translated as a "katric ark" or an "urn of memory." On Vulcan, these receptacles are enshrined in the Hall of Ancient Thought where adepts may commune with the katras of ancient masters. (ENT: "Awakening", TOS novel: The Lost Years, Avenger, Exodus)
- A popular Star Trek fanzine series, focusing on Lieutenant Saavik, Vulcans and Klingons, published by New Zealand's Lana Pennington-Brown in the 80s and 90s, used the title Katra: the living spirit.