As a western boy in a dead end town I will remain with the eastern girls on this one. Most of what I read on this thread seems like so much “flubber” to me. Indeed, we need to satisfy our rational curiosity on things of God, proper exegesis and formal theology are good things. But Jesus is the true, high priest and the one sacrifice. The Lamb of God should not be marked for kosher and non-kosher cuts. Consider He offers Himself, au jus, eh?
The passion that opens the way to eternal life comes from the infinite mercy and reveals the agape love of The Father for every sinner, that is, all of us. Anticipating a way to define the rational definition of this is quite impossible, by definition. It is great mystery and that is my final answer, lock it in. Some things can never be known by the finite mind. God bless your attempts to understand a process philosophy of atonement. For me, God loves us beyond our capacity for understanding is sufficient.