The weirdos and saints among us; the mystics, gardeners, and winemakers. Not too interested in rocking the boat or being famous (and they usually aren't, especially in the later stages.) Psychotics and schizophrenics (the other set of people who hear voices) are usually Mature Souls. Most of the famous New Age guru types are also not in this category; rather they are usually Late Young or Early Mature Souls who are still interested in the world drama game or working out karma. Old Soul characteristics don't tend to manifest fully until after age 35.