Here, he interpreted it as follows:
"H" = humanity
"M" = Mark
"P" = Paul
"T" = Tim
-If "H" represents the Godhead, then the lines leading from "H" must represent proper part relationships. Thus, M,P, and T are all proper parts of the "H"
-Worse though is that M,P, and T each have further proper parts within them (2 circles under)
Besides, the obvious problem here is that his model shows 3 humans, and hence, 3 Gods