Separation seems to be a theme that shows up in every spiritual tradition, and the overcoming of it to union is the goal of the seeker.
Modern physics leads to mysticism. Why? What do we find when we pull apart reality? Perhaps that we can't ultimately pull it apart.
Sometimes the relationships between words, and their origins, can help us understand them better.
An addition to the BHT, where Paul (or a disciple of Paul) talks about the infinite Grace that Christ is found in all beings, and the type of wondrous insight and knowledge that God reveals in those who attain the consciousness of Christ.
I think the story of Adam & Eve is a mythological allegory describing humanity's "fall" of consciousness into the dualities of self-awareness, subject/object relationships, and the opposites of existence. This is symbolized in the partaking of the "tree" of knowledge of good and evil, i.e. dualities.