A constructive account of Alexander:
There is a natural tension between coherence (separation and wholeness), operating at every scale. His fifteen properties are its grammar.
Levels of scale, strong centers, boundaries, alternating repetition, positive space, good shape, local symmetries, deep interlock, contrast, gradients, roughness, echoes, the void, inner calm, not-separateness.
Take any seriously, and you can notice more about how coherence is showing up.
Integrated-differentiation and criticality are substrate-independent, and common across nature, because all are products of adaptive growth under constraint. As such, we're keenly tuned towards it.
And our field of care isn't limited to bounded systems. Everything we touch is dependently-originated, intimately tied together. This doesn't need any sort of extra cosmic substrate or independent field.
The book is a love letter to Alexander's (and, our) field of care.