A System is a set of objects or concepts, capable of being defined by properties and relation that through their interactions constitute an integrated body; or the rules that govern such a body. Thus the set of all numbers is a system; and the rules of numeracy is a system; and the set of all possible concepts is a system; and the set of all possible objects is a system; and the Ucadian language of Logos is a system; and the body of a living higher order life form is a system; and a community of higher order life forms is a system. The Divine Creator of all existence and all Heaven and Earth, as Unique Collective Awareness is therefore a system; and Divine Law and the Laws of Ucadia are a system.

Every valid system may then be delineated by its boundaries, influenced by its environment, described by its structure, defined by its purposes and expressed in its functions.

It is impossible to reasonably argue that the concept of system itself is negative, or flawed or represents the cause of negativity or error in of itself. Instead, the existence of systems is the effect of existence itself. Therefore, to deny or repudiate the necessity of systems without reason, is to repudiate existence itself and all forms of competent mind; and to confess one is non compos mentis.

Similarly, to argue that the existence of systems within the dimension of temporal existence are reasonable, yet the existence of systems within supernatural and non-temporal existence is unreasonable is absurd. Existence depends upon systems; and the existence of Unique Collective Awareness depends upon systems within non-locational consciousness; and the existence of Heaven depends upon valid systems.

The Supreme Systems of One Heaven, also known as Supremum Systemata, are those spiritual organs, bodies, associations, persons, rules, rights, functions and processes in existence to ensure all valid Divine Law and Universal Law is upheld; and that the Rights of Members are protected; and that the Society fulfil its objectives.

Eight primary systems exist, being:

(i) Supremum Universalium Systemata (Universal Systems)

(ii) Supremum Custodiarum Systemata (Guardians Systems)

(iii) Supremum Angelorum Systemata (Angelic Systems)

(iv) Supremum Feminine Systemata (Feminine Systems)

(v) Supremum Officium Systemata (Offices Systems)

(vi) Supremum Nummarium Systemata (Financial Systems)

(vii) Supremum Sacramentum Systemata (Sacramental Systems)

(viii) Supremum Obligationum Systemata (Enforcement Systems)