Self-consciousness and Trinity

Discussing the Trinity, Shedd argues that self-consciousness is necessarily triadic as it requires (1) the mind (2) to contemplate itself and (3) to perceive that the contemplating subject and the contemplated object are one and the same being or essence.

Introduction to Augustine, On The Trinity, Fig Book edition, p8

We may term these subject-ego, object-ego and ego-percipient. (p10)