Rupert Spira
Rita Beintema
Anthony de Mello
Olette Luitwieler
Sally Bongers
Adyashanti
Erica Rijnsburger
Jed McKenna
Arold Langeveld
Philip Renard
Karl Renz
Unmani
Alexander Zöllner
Nisargadatta
Suzanne Segal
U.G. Krishnamurti
Justus Kramer Schippers