The cultivation of the Dao is difficult path to walked because unlike physical knowledge that one could gain by observing a phenomenon then seeing the physical creation and structure would be able to use science and magic. Magic is similar to science where it only use magical energy in the surrounding as basis in create magical spells.
This also apply to molding other energy to have their attributes to take form which makes it important to know how the phenomenon works. However, Cultivating the Dao defy the general rules of using energy to mold it into an elements when Dao is the very center of the phenomenon. Which those that understood and comprehend the Dao would be able to defeat those who use energy based.
A Dao is the true meaning of every elements and structure of all in the universe. The prime essence that make the fundamental reality of the world.
The most simplest explanation is science use the physical and observable structure of the world then invoking the phenomenon while Magic is the same but use the energy in the their surrounding to perform phenomenon that defies basic science. On the other hand Dao, Defies all natural laws and system when in used and understood to the highest. They are the Root of all things. Perhaps the root of Akasha is a type of Heavenly Dao but Caelum won't know until he went to the Nasuverse.
Caelum resumed his comprehending the Dao of Void removing himself from everything returning to absolute nothing. It was slowly becoming more empty even the slightly connection to his own being was gradually fading yet the sensation was familiar. He was becoming more connected within the vast reality like becoming a branch into the boundless worlds.
Outside his being began to devour the energy increasing his soul, mind, body, intent, etc. He was essentially transcending his boundaries becoming more aware and tapping into the four dimensional plains but it was too much and quickly return into third dimension.
Caelum body gradually radiate of being one with the world itself becoming absolute nothing. He smirked with his eyes closed as the level of comprehension finally reached another stage. It was the One with the world stage where he was able to manifest the Dao of the Void for brief moment. His other basic Dao had all reach the advance level due to his main Dao link to them which meant as long his Main Dao advance without focusing on his other Dao would still be able to grow.
It was the advantage of Cultivating the Dao of the Void. Though, the only disadvantage is it's extremely difficult and one wrong move would end up causing Caelum to be erased from every point of time with only one know he exist is Nyarlathotep, Sapphire Nawa and Cereza.
He stood refreshed after achieving the one with the world and the difference was truly unbelievable as Caelum felt one in the surrounding then it shocked him when his Eternal wheel and True exterminating wheel appeared then transported itself into his sea of consciousness causing a another new Dao came to Caelum mind.
It was Dao of Eternity and Dao of Slaughter which gave Caelum another possibility of reaching true eternal life and make it easy to become an Eternal emperor if he used Desolate Era's cultivation system. He could feel they were still in the basic stage but it was enough for him due to similarities of Dao of Cycle to Dao of Eternity.
Caelum was able to feel his body had began to change and the Aura he always exude that always charmed everyone instantly faded as he was able to finally achieve [Divine Leakless body] and not use his Puppet when going outside.
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The next day, Caelum headed his way to Heaven where Michael had sent angel to his mouth tempest and escorted him to the gates of heaven where Michael waited for him smiling seeing an old friend.
Caelum was half expecting to see Gabriel but was told she was in her office which made him tilt his head imagining how she looked doing paper works. Nonetheless, the two headed their way to heaven with Caelum provided artifact to explore further up the heaven.
Even though it was called heaven, the [Heavenly] energy is only slightly thicker than the outside but does contains holy energy in the surrounding. He told Michael along the way about his Nine realm which shook him after the fact it was possible for angels to produce without falling.
"Are you sure it's possible? I never heard something about entire universe beside a longinus type sacred gear but even then it's only works in that mini verse."
"Yes I'm sure of it. My Nine realms are separated in this world and connected to me which means I decide the rules that befall my world."
Caelum who had connected to every single will once they lived into his sea of consciousness and able to sense their emotion even control them. He was basically omnipotent within his Nine realms but only apply if the creature is extremely weak.
Michael couldn't confirmed it but accepted caelum words because its possible then his fathers creation would never end. It had plagued him due to countless causality that befall the angel faction only leaving few hundred angels alive. Though it had slightly been solved by the discovery of Brave saint using the evil pieces of devils to reincarnate other races.
Still, it gave way for pure blooded angels to born once again would be blessing that his father would one day see. Michael still knew that his father is alive due to fact that the Heaven system still hadn't faded even after he connected himself to it. If his father truly had died then it would have disappear a long time ago.
Caelum had long told him that his father is alive and would one day return but when remain a mystery. Though, it would nothing more than hundred thousand years to fully resurrect himself back. The two arrived where gabriel was and when she saw quickly flew toward them.
"Caelum! It's great to see you again!"
"It is always a heavenly sight to see you!"
Caelum laughed while bugging the beautiful angel whose breast was pressing into his hard body causing Michael to slightly twitch knowing the man was quite known for his unbelievable number of wives. The three quickly went to discuss about his Nine realms which was easy to understand due to having visited the Norse faction.
"Is there a difference between yours and theirs?"
"Many ways yes, it is connected to my being and as I grow it also grow. Don't worry this growth won't negatively affect the resident I guarantee that."
His Nine realms grow but doesn't experience constant tribulation like his Zenith world that his endless cycle of destruction and creation. Though, he was unsure if the angel can become extremely lustful After learning they could produce after getting inside his Nine realms.
The creature that was inside his body were harmless due having their own consciousness and Caelum able to set rules within his Nine realms if he want to. It was decided for Gabriel to be the one representing the angel faction in permanently living inside his Nine realms as Michael would remain in Draconic deus because of his promise to his father which caelum understood.
He can see himself within the man when he was still a human where he has priorities and always protect his sister. Though, Caelum would be the to shag his sister unlike he did to his own. He didn't request for the Apple of Eden when he remember that he has the Gate of Babylon. Caelum decided to eat one to see what will happened after he took the angels who will be the first batch to his Nine realms which cause them to be shocked when stepping into the portal.
The holy energy was thicker than their own that would easily be compared to High class angel in terms amount of energy they are currently absorbing. Thankfully, caelum had Holy and demonic energy that would prove helpful for the Devil and angels.
"Amazing! What are those things!?"
Caelum chuckled how she is acting like little girl who had seen a rainbow for the first time. She saw the advances technology that had magic applied to them and many races leaving in harmony namely Fae, elf, Dragons and humans.
"Well how about I give you a tour? Where do you want to see first? Don't worry my subordinate can handle them."
Caelum summoned his retainers namely the Monarch that he had long made to become the guardian of his inner world if something happened to him. They are artificial creature that caelum created using weak magic skills but now they grew enough to not just artificial creature. He took Gabriel hands then went their way to have tour of his Empire.