I'm just putting this here because it needs to be put somewhere...
Just a little babbling about U-DO...Some argue the Zohar's power source is U-DO and nothing but. This is a viable theory but it seems not-completely-true to me. The fact is, the Zohar is just one of the things U-DO is connected with in this domain.
http://zarathustra.kaisho.org/chap3-12.phpErich: U-DO…
Lactis: …U-DO?
Erich: It started with a trivial event. Driven by my curiosity, I invaded the U.M.N. root data.
Lactis: You mean you hacked into the U.M.N.’s core structure? Isn’t that dangerous!?
Erich: It is. Even I knew it was a stupid thing to do. That place is a Pandora’s box that must never be opened by humans. With every second that passes, the program’s structure evolves. Trying to understand it, I dove over and over, day and night, until I couldn’t even recognize my own existence anymore. There was something between me and that far-off structure… I became convinced it was something like 'the end of the world.'
It also seems implied in the XSIII Database that the UMN is Animus/Mary’s power
(under Vessels of Anima)
“causing half of Mary’s body (the Animus) to be dispersed across the area of the collective unconscious - in other words, the UMN.”
A similar relation between U-DO and chaos’ power of Anima is hinted at in the XSIII Database.
(Under chaos)
“He still exists as the universe’s failsafe. Because of his
fate ordained by God-or perhaps because people struggling against their own fatesdesire his existence-his future form still lies in the chaotic darkness.”
We also have Wilhelm calling Anima "the body of God" and Zarathustra's complete bio in the database calling Anima "the power of God".
Finally we come to the Vessels thenselves as stated in the E.S. bio in the Database:
"since E.S. Units operate on energy supplied by the Zohar via the Vessels of Anima interface, their supply of energy is inherently limitless."
Then we have Abel and the Ark which serve as the real space and imaginary space observational terminals in this dimension.
So, U-DO is not just a powerful figure in the Zohar. It appears to have a relation to multiple things in this dimension that we can find.
So, the Zohar can’t “reach up and draw power from U-DO” in my mind. After all, the idea of Wilhelm’s Eternal Recurrence is:
(under Zarathustra in the Database)
“As observational terminals for God, Abel and the Ark (ie. U-DO) need to be sealed in lower dimensional space.”
Ie. What Wilhelm said “cover the eyes of God”
Then there’s the fact if the Zohar’s only power is the U-DO where does Omega Res Novae fit into this? Abel is U-DO. Yet it needs something else to channel U-DO’s power?
There are some bits to the Zohar=U-DO idea though. By U-DO’s/Abel’s word, “that song” appears to heal him. We know the Song is Lemmegeton which was used as a way to control the Zohar. But we also know from the Database that the Song of Nephilim doesn’t summon Gnosis but
(from the Database)
“The Gnosis appear simply because a door has been opened onto imaginary space as the result of U-DO activating in response to people who have made fragmentary contact with it through the Song.”
This applies to even when the Song is nowhere near the Zohar like in Episode I. The Song can contact with U-DO anywhere in space so U-DO’s relation to the power of the Zohar is still ambiguous.
We saw U-DO link with Albedo near the end of Episode II. But we know U-DO had already left an avatar in this dimension since the death of Earth. It also shares some relationship with the UMN which was around long before this incident. So, U-DO was in multiple locations in this dimension when Albedo drew the power he got.
We do know the Zohar going out of control on Earth was the cause of Abel, U-Do's real space avatar, appearing in this dimension, though.
Plus the fact I don't believe it was ever explained what happened with the two Shions and the Zohar that caused the Gnosis and Abel's Ark to appear.
There's simply too many pieces left unexplained in the end.
U-DO can be several “parts” in Xenosaga, though. Perhaps the Zohar represents its energy and power, Abel and the Ark its eyes and body and the UMN its mind?
Again, idle speculation.