1. subsuming is not annihilating. that's one of my points as to this, annihilation is sudden, active and violent and Neptune is none of these things.
2. I fully believe that you can be both fully yourself and fully one with the universe. It's not a paradox if you don't treat it as one.
3. Pisces may be the last sign, but it's not really the rebirth sign. That's scorpio, the eighth house, the house of death and rebirth.

But we can discuss this in person more.