Come together and discover Jean Gebser’s perspective on human evolution. Explore how the ever-present origin manifests itself across time. No prior knowledge required.

Practice Testimonials

“Lee is so organized; thorough, succinct, and thoughtful. He helps me ground and be present. When I heard ‘so many steps to follow’ he immediately buffeted with a split-screen option to refer to in the breakout. I can model this as I see it is possible.” – Mary Janicki.

“I found the format provided by Lee Mason to be very effective, and Lee’s observations and comments to be very helpful. As always, group interaction is very supporting and informative.” – Judy Smith.

“I love Lee’s Integral Practice Sessions. He has a calming and friendly demeanor and sets a welcoming tone in a short time. His Google Doc instructions are very helpful when breaking out into small sessions and they help keep the focus during the short amount of time.” – Sheila Stahl.

Meet Your Practice Leader

As a Physical Therapy graduate of the Amsterdam University of Applied Sciences (HvA), Lee has facilitated thousands of treatment sessions with patients in various sectors of the Dutch healthcare industry. As a teacher, he has facilitated courses and workshops for students of universities in Amsterdam (UvA), Utrecht (UU) and Eindhoven (TU). He has also created two online courses about the practical application of Integral Theory for the online education platform Ubiquity University. As a coach, he has provided coaching for clients employed by Accenture, Amsterdam University (VU) and the Dutch Ministry of Education, Culture & Science (OCW). Throughout his career, Lee has helped people to develop healthy exercise, nutrition, hydration and sleep habits and also effectively transform unproductive thoughts, unpleasant emotions and limiting beliefs. Lee’s book (in Dutch), presents an Integrally-informed method which readers can use to achieve important life goals.