User blog comment:EvilMegaCookie/The Golden Beast (Joke Sheet)/@comment-4867780-20150416101057/@comment-5819717-20150417153032

They can only use their own abilities at his level, whereas he can use theirs at his level. And there is something called a Singularity when Hadou God's clash, where Taikyoku becomes useless and physical prowess is the way to go from what I remember. The Singularity is basically the path leading to the Throne. A device that allows the God to subjugate the rest of reality to his or her cosmic law/desire.

Pretty sure meta-level is just the wiki's way of saying multiversal. And yes, that is pretty much what the 'verse runs on. Assiah, Yetzirah, Briah and Atziluth can basically be said to be different stages.

Taikyoku is what allows the user to shape reality in whichever way he or she desires. It could be said to be the very source of reality. Value determines how strong you are in the scheme of things and can be increased via souls, I think? It also depends on how strong your desire is.

Assiah < Yetzirah < Briah < Atziluth. The four spiritual worlds in Kabbalah.

On Assiah, it's basically the level in which you can launch strikes with your Relic in an incorporeal/ invisible form, but it's way weaker than the fully materialized Relic in Yetzirah. The attacks can harm other Ewigkeit users, but if the opponent is using Yetzirah then it's over for you. In Assiah the body also turns stronger and more resilient, but being attacked in vital points is still lethal (Yetzirah explicitly lacks this weakness) and you get a difficult to control urge to kill, which mostly dissappears upon hitting Yetzirah.

Yetzirah is when you have access to to a holy relic and have fused with it, making your body ageless. This is just me guessing from what I saw when Reinhard summoned Longinuz Testament. And that he hasn't aged a day over thirty.

Briah is when your desire/law starts to paint over reality. A state where you yourself becomes a universe, independent of the existing one.

Atziluth is the highest and what you gain when becoming a Hadou God/Godou God. This is where you gain Taikyoku. There are a few instances of being born as one (Marie and Mercurius), but an artificial way exists: The Swastika ritual... thing Mercurius did. Which requires a lot of holy relics as well as souls numbering in the millions. Reinhard could be said to be an artificial Hadou God.

And then we have apoptosis. Apoptosis is basically the Hadou God's (I seem to recall only Hadou Gods having this) self-contradictory in their laws. Their cancer cells as some of you have already said. Reinhard being Mercurius apostosis, which automatically makes him the Snake's equal. Shirou is Ren's apoptosis and his power is basically to nerf anyone of supernatural status down to the level of a normal human. A confrontation between the two leads to either of them being destroyed.