And since through the hypostatic union human nature was united with divine nature, we are also, by this definition, that One Being. The one being that we share is not in our own "personal being", as you might put it, but in God. Thanks for clearing that up, Dave! :o)
No. The hypostatic union is in the person of Jesus. It is not universal to all humanity. Human nature is not the same as divine nature with respect to individual persons.
It is why we need to become part of the Body of Jesus, cause then we are united to the divine.
SD