Added by The doctor

You may also be looking for the colony ship Traveler.

Travelers are a race of people from the planet Tau Alpha C. The Travelers make up just 1% of the total population of the planet, but they possess extraordinary powers that enable them to control time and space.

If a Traveler encountered another being that they became impressed by, then the Traveler would act as a mentor to the being until they are ready to be "born" as a Traveler. (TNG novel: A Time to Be Born)