I was inspired after a recent conversation (on humans’ psychological relationship with our own spiritual development) to do something I have been meaning to do for a long time, namely to put into practice some of the methodologies that I considered very powerful after reading Alister McGrath’s A Scientific Theology trilogy. Essentially, I want to bring the well-known concept of mathematical modeling to bear on a theological issue (spiritual development). In doing so, I am hoping to achieve what all models are meant to achieve–an analogy that captures as much of the data as possible while providing a simple, coherent, abstract picture that can be investigated in its own right. I am emphatically not trying to define or otherwise delineate all aspects of spiritual development via such a model; spiritual development is the reality, and any model is simply a way of attempting to capture that reality and present it in such a way as to spark further exploration. That is all! Indeed, just in virtue of the fact that the model I am about to propose is mathematical, we should not expect it to speak to all (or even most) of the phenomena surrounding spiritual development, which exists in a stratum of reality distinct from that of mathematics. Still, some surprising correlations can be made, and I hope these may be found useful.