The way the triangle is normally presented, it is with the sun at the top as the point/tip, and the red is at the bottom (earthy).
…but you should flip it upside down to where the wide part is at the top because the sun is at the top of the whole timeline (the what) (heaven)…
…and blue is the now where the eternal point happens (the how) (“earth”)…
…and the thing that glues it all together (red… the why… formal/final) is smack dab in the middle of the what and the how (on earth as it is in heaven).
But that still doesn’t show their mutual dependence/production, so…
Baseline hypothesis: You’re more likely to have good reasons (and to believe them) if the thing is actually the case. The good reasons (blue) and the belief (red) do not make the thing actually the case (yellow). However, in order to have conscious knowledge, you cannot privilege reasons (justification), belief (positional awareness), or the case (truth). You have to have all three (hence the Venn).
The yellow (ontic) whole (transcendent timeline) subsumes all possibilities red (thetic) which we co-creatively help actualize/demonstrate with our (immanent now) choices in each blue (deontic).
blue how middle/center [immanent now] (efficient cause) (deontic) … do
red why actual middle (formal/final cause) [alpha & omega… Logos] (thetic) … end
yellow what outer/whole [transcendent timeline] (material cause) (ontic) … be