Community, Nature, Supernature

According to Aristotle, Humans are "by nature political animals".  Clearly, the principle of the basic community, the family, is Natural--to propagate the species, via reproduction and child-rearing.  Likewise, at least one principle of larger communicaties is the continuation of the species, as is evidenced by their foundation at locations that conduce to the provision of vital necessities, e. g. arable land, access to transportation routes, etc.  So, Nature is a sufficient condition of community-formation, leaving uncertain whether or not it is also a necessary condition of it.  In other words, uncertain is whether there is a Supernatural principle of community-formation, e. g. notably, of the Psychopolis and Theopolis of Medieval Theology, i. e. the assemblage of immaterial eternal Souls that have been liberated from the cursed Human species.  Not very much is known about this 'City of God',  but even if such entities exist, why they might engage in a process--communing--the known principle of which, according to Aristotle, is animalistic, remains unclear.