There were cultivators in the distant past that have tried to create a cultivation method for body and soul. However, they have flaws and won't allow one's body and soul to reach their peak. The reasons for this are the current cultivation system in this cosmos didn't cultivate the body and soul to their limit and these methods contradict the cultivation system that they were using.
That was why no one bothered cultivating the body and soul thus, the methods were abandoned and got buried in history. Though there are some rare cases of someone coincidentally finding these methods in some ruins, and most of them tried to use these methods thinking that these methods will allow them to be the strongest. And the moment they sensed the flaws were already too late for them.
On the other hand, Unification Heaven will allow him to have much stronger and stable cultivation in body, Qi, and soul without flaws and contradictions because it has its independent cultivation system.
He got the name Unification Heaven from Old Man's inheritance called Defying Heaven, just as the name suggests, the Old Man intended to defy heaven! Deceive, Fool, fight, struggle and defy heaven, these are the intentions of the Old Man when he created his inheritance.
Compared to Azrael's Unification Heaven it sounds more domineering. However, don't be fooled by just their names because the Unification Heaven's essence is much more domineering.
If all great daos contradicts, I will unify it!
If all great daos cease to exist, I will create my great daos!
If heaven is shattered and divided, I will unify it.
If heaven is completely destroyed and ceases to exist, I will create my heaven!
If I am under heaven, I will strive and be higher than heaven!
I won't just defy heaven, I will rule it!
These are the very essence of Unification Heaven.
And this time he will cultivate again using the Unification Heaven that he created and surpass his old self.
The body, Qi and soul, these three are the very foundation of Unification Heaven.
The first stage, the Muscle Tempering stage.
In this stage, he needs to temper his muscles, tissues and organs. To temper these parts, he will need resources that will help him in tempering his body such as pills or spirit plants. However, what he wants to use is not simply material resources.
He spread his palm and a speck of light that is smaller than dust condensed. This speck of light holds a massive power, the power of the great daos! What he wants to do is use the power of great dao to temper his muscles. This method is heaven-defying and will surely bring great benefits to him, however, he will suffer excruciating pain.
Holding the speck of light that holds the power of great daos, he looked at it for a good moment before opening his mouth and swallowing it.
After he swallowed the speck of great daos, nothing happened. That is because he is trying to prevent it from exploding inside his body. If he fails to prevent it, not only his weak physical body but the whole galaxy will be consumed by the explosion.
What he is trying to do now is to release the power of the great daos inside it little by little and use it for his cultivation.
At this moment, he released a tiny portion of the speck of great daos. The moment he released it he controlled this power in a very proficient manner. He then redirected it to his muscles, tissues, and organs.
His muscles burst, tissues were ripped and his organs exploded, the former Azrael that was sitting in a cross-legged position was now turned into a bloody mist. His physical body was destroyed in an instant, his blood filled the air and only his skeleton remained.
In the center of the bloody mist, a speck of light flickered inside the skeleton where the lower dantian was supposed to be, in an instant, the bloody mist in the surroundings started to gather at the very center. And a strange sight happened, the bloody mist formed a figure sitting in a cross-legged position surrounding the skeleton. Veins sprouted out of nowhere then the bloody mist was sucked by the veins. After the veins, organs and muscles were formed, creating a ghastly sight. Thankfully skin covered the ghastly sight in a few seconds. Then black hair started to grow until it was long enough to reach his upper back before stopping.
Although his body exploded, he didn't die and his body reformed in an instant using the power of great daos. He wore a calm expression as if nothing happened earlier. However, he may look calm from the outside, it doesn't mean he didn't feel the excruciating pain of his muscles, tissues, and organs being destroyed.
The only reason why he has a calm expression despite the pain is because of his strong mental fortitude and will that was tempered by billions of years.
This scene only lasted for a moment before his body exploded again.
This repeats, again and again, the whole night.
***
The morning arrived and Azrael was sitting in a cross-legged position naked. At this moment, his body didn't explode anymore. He opened his eyes, his eyes that hold power beyond imagination. He looked at his palm and clenched it.
At this moment his surroundings trembled as if all laws were being clenched by his fist.
"5th Muscle Tempering stage," he muttered, then he smiled with satisfaction.
He stopped his cultivation session the moment he stepped the 5th Muscle Tempering stage because if he didn't stop cultivating, he would have a major breakthrough. However, Azrael didn't want any major breakthrough. What he wants is a solid foundation and to achieve that, he needs to break through step by step.
Earlier he tried to break through 5 levels at once but after this, he will proceed one step at a time and take his time to consolidate his foundation. Well, with his methods and knowledge consolidating his cultivation won't take much time anyway.
After seeing the result, Azrael smiled in satisfaction. At last, he will be able to cultivate the cultivation system that he created.
"I will take my time in cultivating and perfecting this cultivation system."
He then sensed something and looked above, his lips curved with a provoking smile.
Meanwhile, the whole estate was in a state of panic while the people in the city were looking towards the Rose estate, to be exact, the sky above the Rose estate as their faces paled.