personal subsistence
In my gift-ontology, personal subsistence names the reality of a person as a concrete who existing in itself, not merely as a role, mask, or moment. In creatures, personal subsistence often implies an individual substance, one instance among others in a shared nature. In the divine case, personal subsistence cannot be imported univocally, because there are not three instances of deity. Personal subsistence in God is the one simple divine reality subsisting personally by relations of origin. The Father’s personal subsistence is unoriginated source, the Son’s personal subsistence is begotten reception-and-return, the Spirit’s personal subsistence is proceeding communion. This secures real personal distinction without implying composition, division, or separate divine centers. It also blocks the reduction of personhood to structure: personal subsistence means concrete personal reality, not a relational schematic.