I met Colin and Heike in the Algarve, Portugal, for an introduction to Sacred Geometry. I was fascinated and decided to do the TTC in India. I learnt so much and have still so much to learn! I really admire the teachers, their knowledge and their patience to pass the knowledge, their support and their enthusiasm (which i share).
I can highly recommend to follow an (online) course with them, and get answers to your questions and get inspired to share what you have learnt!