I have had a strong interest in both the MBTI and Enneagram for a good twenty five years. There is alway more to learn and just as much to try and recall. I am interested in the nuances of the nine energies and the Instinctual energies and recently I have begun to explore the math related to the enneagram symbol. It's a bit complex for me I kinda get it and I kinda not get it at times. But I will continue trying to advance my understanding of the primary structure. 
I understand Tritype, tri fix , the six instinctual variants , the three instincts , the nine energies and the eighteen subtypes, and the missing two MBTI types. ESNTJ & INTFP.
cir
i live in Queensland Australia.