Mine would be akin to yours.
Starting with the discovered ability to teleport, then amplifying the ramifications of that.
Those who can teleport have a natural ability to move their bodies from place to place, or to move other objects to them.
I have an envisioned scenario of a teleport encountering a normal person, one who met the standards as a suitable companion.
Over time, the teleport taught and enabled the non-teleport to have the ability. There is no practical limit to such an ability.
One reason I have not put this scenario to paper is that the basic idea, and inherent abilities involved, have been subsumed into my existing works.
Once you learn to tap into the fundamental forces, you could literally do anything. Including a certain omnipresence that would set you forever apart from the rest of humanity.
It would be nice to transcend all the petty jealousies, the arguments, the differences...