When he awoke from his bloodline awakening at the age of 25 Horo, had begun cultivating a soul cultivation method he found long ago in an ancient ruin called the Primordial Soul Method. He believe this cultivation method was from the immemorial era, an era that was long before the fiend god era and even the Chaotic era.
He chose this method because one of the many dreams he had while slumbering indicated that it would be perfect for the bloodline he had that exceeded both of his parents'.
He felt this method would help him be able to discern truths from falsehood in his dreams and visions that were of different realities, he knew that some of the things he saw while slumbering may truly have been real in a different spacetime or plane of existence, and his instincts cried for him to revisit those dreams.
Horo knew many things about the laws of the multiverse like spacetime, the void, different planes and realities, even though he may have not comprehended the specific laws related to the to subject, this was because the level of the cultivation world was so advanced they knew about many things beyond their universe. Some immortal emperors were able to transcend the emperor realm and go beyond their reality, which is how the cultivators was able to obtain knowledge beyond their civilization, also they had methods like supreme divination and treasures that gave them insight into things beyond them.
Luckily this played in Horo's favor, it help him become aware of the possibility that his visions and dreams were more then what they seemed, in fact he became more and more certain that they were more than what they seemed which lead to him choosing the primordial soul method. The method worked wonders, it took his bloodline abilities way beyond their natural capabilities, on top of that was the effects of the cultivation method itself.
The basic effect of the method granted him the ability to sense calamity and fortune by drawing his soul to opportunity and enhancing his intuition to avoid certain doom. This effect made his heaven's eye evolve and transcend beyond his previous lineage's unique eye, this was because his third eye and the basic effect of the technique practically the same which had a multiplication effect, to top it off his soul and body was one due to his mother's bloodline, so cultivating the soul method was akin to cultivating his heavens eye which was part of his soul.
Progression in the primordial soul method also granted other abilities like, fiend god's aura, which gave his soul the aura of a being as ancient as the immemorial era and greater effects like a special soul palace. The soul body becomes the soul palace and the soul origin becomes the soul body, as for what replaced the soul origin, it's called an origin seed.
Since he began cultivating the soul method, he began to live as if he was not living for himself. He took heed to all of his visions and dreams because the method helped him discern when he should act on the things he seen or experienced in dreams and visions.
No one had noticed ,but he had began to make preparations. He continued to achieve greatness and leave his mark on the Eternal Heaven Realm, but that was actually secondary because every action he made was more beneficial for the him than anyone involved in the incidents related to him even though they may have thought otherwise. The only thing was they were not related to him as Horo the cultivator…. but to him in another reality.