The components are present (Father, Son, and Holy Spirit), but the cottage industry of heresy revolving exactly around the essence and composition of the Trinity demonstrates that Scripture itself does not explicitly convey the consubstantial nature of the Three Persons, sharing One and the same Substance. The relationship of Father and Son is the only thing explicit, with the Holy Spirit as a "helper", somehow tied to the other two. The word "Trinity" comes from "tri-unity" - a concept feverishly opposed by Arius, Macedonius, the Pneumatachi, the semi-Araians, Gilbert of Poitiers, etc., and not cast in stone until Nicaea.
Maybe, if we don't see an explanation it's best not to build a doctrine/dogma around it. I think it's clear there are some things that are way beyond our abilities.