I'm not sure if this counts, but too bad - it's my choice!
For those that have no idea who I just mentioned, Surak was a great
philosopher on planet Vulcan in Star Trek.
When it was discovered that Vulcans indeed had emotions, the Vulcan world went into a series of wars and Surak led a movement called the Time of Awakening.
After his death, his spirit was reserved in an Urn and eventually gets discovered centuries later and Surak's spirit helps guide the overthrow of the Vulcan command and brings back more peaceful times to Vulcan. His spirit later gets transferred into a body of a priest.