The HUESA method was developed by Dr. Theresa Thu-Thuy Nguyen, very often referred to by her students as Cô Theresa.
She was born in Vietnam and emigrated to Australia. She is an Australian citizen and a certified medical doctor. She earned a Bachelor of Medicines and Surgery from the University of Melbourne, Australia (1988) and practiced medicine in Australia for many years.
In her quest for spiritual development, she has travelled extensively around the world coming across different belief systems, traditions, and cultures, which led her to change the focus of her life and start sharing her insights and experience with other like-minded people.
In 2007, Cô Theresa has taken a further step in her mission as a spiritual leader, becoming the leading instructor and President of HUESA. Since then she has conducted over two hundred seminars or talks in a number of countries (Australia, Bosnia and Herzegovina, Brazil, Bulgaria, France, Germany, Hungary, India, Indonesia, Italy, Macedonia, Mexico, Mozambique, Netherlands, Poland, Portugal, Romania, Russia, Spain, Sri Lanka, Thailand, USA). In addition she has taught a number of seminars through video conference to many more countries, reaching thousands of students.
Cô Theresa has led a number of pilgrimages, or spiritual tours, with groups of students to places of particular spiritual importance, for different religions and belief systems, in over 30 countries in 5 continents.