The ESF, being about the unimol organismic wholeness, shows that also the soul (psyche) possesses exactly the same one-off individuality as does the organism having this soul. So there are as many souls, that is, species of soul as there are species of organisms. Now it is ESF-ally evident that the soul, that is the conscious state, of the unicellular organism shows the same difference with our consciousness as with the physical organized state. Unimol and ESF grant us to assume, without error, a conscious state (and also as to its degree) everywhere where it [unimol / ESF] is present. The hard to establish degree of consciousness or degree of having a soul can be [indirectly] estimated with rather great certainty after the degree of bodily complexity [state of bodily organization] which can be more directly and easily established. In practice also the reverse does play a role namely that we -- provided favorable cases and observability -- conclude from more or less spontaneously to be recognized mind-likeness [of something] to the degree of bodily organization (This approach is in fact the superior and more adequate one). Often one has, in virtue of a substantial, expressed according to differentiation, height of organization (as in Paramecium [a unicellular organism] for example), concluded to a corresponding [degree of] "animation", having set up meaningful relevant experiments and indeed having found significant performances such as phenomena of memory and associative connection of sense impressions.
The soul (psyche), undoubtedly "the most obscure and hard to access form with which scientific thinking has ever dealt (C.G. Jung) obtains from Unimol / ESF a "transparency" beyond any expectation allowing a range of explanation far outstripping religious interpretations not only as to value but also as to living versatility. There is no reasonable view that could compete with the powerful [notion of] ESF.