A Guiding Light for Personal Growth, Healing, and Purpose

Since 1949, the Concept-Therapy Institute has helped healing professionals and lifelong learners gain a deeper understanding of the principles that govern health, consciousness, and human potential.

Through educational programs rooted in the relationship between body, mind, soul, and spirit, CTI empowers individuals to live with greater awareness, purpose, and fulfillment—both personally and professionally.

Whether you are a healthcare practitioner seeking a deeper understanding of human behavior or an individual committed to personal growth, Concept-Therapy provides a timeless framework for living in harmony with natural law.

Explore our history, philosophy, educational programs, and global community.

Our Mission

Making a Positive Impact

The Concept-Therapy Institute provides a structured course of study integrating teachings of enduring wisdom with a principled understanding of the body, mind, soul, and spirit. Through tuition-based, educational programs designed for healing arts practitioners and dedicated students of personal growth, we clarify natural laws that unify diverse systems of knowledge and support ethical, informed, and principle-based professional practice and empowered personal development.

Our Vision

Acting With Integrity

To cultivate a world in which healing practitioners and seekers of self-knowledge understand and apply timeless principles governing human health, consciousness, and well-being—supporting self-actualization through lives lived in alignment with Universal Truth.

What is Concept-Therapy?

Concept-Therapy is more than a personal growth philosophy it is a framework for understanding how life works.

Rather than focusing solely on techniques or positive thinking strategies, Concept-Therapy explores the underlying principles that govern human experience. It helps individuals understand why certain approaches succeed, how thoughts influence outcomes, and how alignment with natural laws can create greater health, harmony, and fulfillment.

At its core, Concept-Therapy encourages self-discovery, personal responsibility, and a deeper awareness of one’s relationship to the Universe. By understanding these principles, individuals gain practical tools for improving relationships, enhancing professional practice, achieving personal goals, and living with greater purpose.

For more than 75 years, students from around the world have used Concept-Therapy as a guide for personal growth, professional development, and lifelong learning.

Learn More & Join CTI

Our History

A Legacy of Learning and Personal Transformation

The roots of Concept-Therapy began in 1944 when Dr. Thurman Fleet started sharing his philosophy with healthcare practitioners seeking a deeper understanding of human health, behavior, and well-being. His teachings resonated with professionals across the healing arts, inspiring a growing community of students dedicated to personal growth and lifelong learning.

In 1949, Dr. Fleet formally established the Concept-Therapy Institute (CTI), a nonprofit educational organization in Texas dedicated to advancing the study and application of these timeless principles. To support this vision, he acquired the Aum-Sat-Tat Ranch in the Texas Hill Country, creating a place where students could gather to learn, reflect, and explore the relationship between body, mind, soul, and spirit.

Today, CTI continues this tradition by hosting seminars, workshops, area meetings, and annual conventions for students and practitioners from around the world. For more than 75 years, the Institute has served as a center for education, self-discovery, and professional development, helping individuals apply enduring principles to create more meaningful, purposeful, and fulfilling lives.

Visitors are welcome to experience the peaceful surroundings of “The Ranch” and learn more about the educational opportunities offered through the Concept-Therapy Institute.

CTI plays host to instructors delivering Concept-Therapy seminars, area meetings, and conventions. Visitors and guests are welcome at “The Ranch,” and inquiries are accepted at the Concept Therapy Institute Monday through Friday, 9:00 a.m. until 4:00 p.m.

1944

Dr. Fleet begins teaching Concept-Therapy

1949

CTI Founded

Today

3,000 global members

Concept Therapy, complete personal growth and wellness

Meet Our Board of Directors

The Concept-Therapy Institute is guided by a dedicated Board of Directors committed to preserving Dr. Thurman Fleet’s vision while supporting the continued growth and impact of CTI.

Together, they help ensure that CTI remains a trusted resource for students, practitioners, and lifelong learners seeking a deeper understanding of the principles that govern health, consciousness, and human potential.

Robin Brunk-Dawson

President

Robin Brunk-Dawson was introduced to Concept-Therapy in 1982 in Clovis, California, by the Dawson-Harrison Team. Thus began her life-long study of Universal Laws as presented by Dr. Thurman Fleet in the Concept-Therapy coursework. Through the years, Robin held offices in Beam and Pathseeker study clubs and has most recently served as Chief Pilot of the International On-The-Beam Club, an active Board position. Her decades-long studies under legacy teaching teams of the Concept-Therapy philosophy, and a deep personal search for truth, kindled a sincere desire to become a teacher for CTI. Having mentored under her long-time-teacher husband Dr. Bill Dawson after their marriage in 2009, and his teaching partner Dr. Eddie Harrison, The Dawson Team actively presented numerous classes and events at their high-desert Double Triangle Ranch in Weldon, California. They continue to carry the torch by teaching Concept-Therapy and mentoring new teachers.

contact Robin

Leigh Zachary

Chairman

Leigh is a second-generation Beamer, taking his first Concept-Therapy class in 1979 from Dr. Herb Dill and Emily (Dill) Mattox. He has taken all of the Concept-Therapy classes and has reviewed them many times, and attended the Foundational Teachers Training Class in 2023. He regularly attends Beam Club and Pathseeker Club, and has received the Concept-Therapy Commendation and Paratrooper Awards. After briefly serving as IOTBC Bombardier in 2019 he joined the CTI Board of Directors later that same year where he then became Chairman in 2021. His two children are carrying on the family tradition and have also begun taking Concept-Therapy classes. He received his BS in Economics (minor in Statistics) from Texas A&M University and is the owner of a financial services company in The Woodlands, TX.

contact Leigh

Mark Oholendt

Treasurer

Mark Oholendt is a retired Alliance Manager and Global Account Executive with the NCR Corporation, and a Regional Sales Manager with Cummins Allison Corp. Mark graduated summa cum laude from the University of Texas at San Antonio with a BBA in Management, with a concentration in Marketing. Mark and his wife Katherine (a retired elementary teacher) first took Concept-Therapy in the early 1970s. They have been happily married for 44 years and are blessed with three beautiful children. They are Pathseekers and have taken all the work. Both are involved as volunteers with local hospitals and schools, engaged in providing pet therapy with their rough collie dogs Prince and Daisy. Mark has taught in many classes over the years, and has received the numbered W and Zero awards from the Concept Therapy Institute.

contact Mark

Bonnie Jo Chastain

Secretary

First introduced to Concept-Therapy in 1975 by The Lynn Teaching Team, Bonnie has had all the classes through Cosmic Principles. Born and raised in Davenport, Iowa, she now lives in Athens, Georgia, where she serves on the Development Authority of Athens/Clarke County. She is also a Master Gardener, giving lectures to civic organizations, garden clubs, and governmental departments. She looks forward to being a part of strengthening the Concept Therapy Institute’s organization so it is available to larger groups of people who are searching for answers.

contact Bonnie Jo

Ginny Minster

Chief Pilot

Ginny Minster became a Beamer in 1963. She took her first Concept-Therapy class from pioneer teachers Rev. E.L. Crump and Kathy Calhoun. Her early teachers also included Dr. Rudy and Barbara Lynn, Dr. Vic and Gwen Loofboro, and Charles and Emily Mattox. More recently, she has taken classes from Dr. Bill and Robin Dawson and the Hardy-Holley-Munger-Oholendt Team. Ginny has served in many of the positions in Beam Clubs and Pathseeker Clubs multiple times. Most recently, she served as IOTBC Chaplain for two years and is now the Chief Pilot. Ginny took Teachers Training in 1985 and taught classes in New York State with Millicent (Haight) Munger and Susan Phelps. Ginny received all the awards and earned the prestigious number 385 W Award in 2008. She is retired from a career in nursing as a psychiatric nurse practitioner with specialties in stress management counseling, teaching nurses, and facilitating self-esteem workshops. Ginny lives with her husband, Chuck, in Pittsford, NY, and spends the winter months in Hilton Head, SC. She enjoys their three daughters and seven grandchildren, and her activities include golfing, pickleball, and knitting.

contact Ginny

Dr. Cassie Mattox, Ed.D.

Board Member

Dr. Cassie Mattox, Ed.D. The eldest daughter of Charles and Emily Mattox, long-time teachers/proponents/supporters of the philosophy, Cassie brings not only her lived experience of Concept-Therapy but also her seasoned experience as a professional educator. As an educational organization whose mission is to “offer a comprehensive learning opportunity for people aspiring to a life of health, happiness, success, and peace,” Cassie offers her cumulative academic, social, and professional experiences, as well as her desire to give back in service to life. She lives in Georgia with her daughter, their dog, and two cats. In her free time, Cassie enjoys volunteering at her daughter’s school, exploring parts of GA, and visiting family and friends back in TX.

contact Dr. Cassie