The Order of Secrets
Celestial Characters by their nature have a a heritage in the secret and hidden aspects of the world. For example you may be the ‘Descendant of Athena’. Because of this heritage you have a deep history connecting you to the secrets.
Celestials tend to consider themselves ‘better’ than more ‘mundane’ members of the Order of Secrets. They also tend to have a lot of collected knowledge available to them from family sources. Often they also posses a lot of mundane resources.