Uranus, Neptune and Pluto are Transpersonal Planets because they embody energies that are more on a "soul" level, rather than an ego level.
Saturn and Neptune, The Duality of Chiron, Full Moon in Capricorn 13-Jul-2022, New Moon in Virgo 27-Aug-2022, Capricorn: Response-Ability, New Moon in Capricorn 23-Dec-2022