Chen Lei breathed in and out freely. The spiritual energy from the upper realm surged into his body like a tide, entering his sea of soul, sea of dantian, and even replenishing every inch of his body.
Suddenly, Chen Lei's body became crystal clear and brilliant, emitting bright light, like a little sun.
Chen Lei breathed in and out as much as he could, pushing the Hongdong Shengyuan Sutra to its extreme.
At this time, even in Chen Lei's body, a tsunami-like sound was heard. Countless spiritual energy was flowing through his meridians, surging like the Yangtze River.
Chen Lei could naturally feel that his cultivation and strength were growing by leaps and bounds.
Ever since Chen Lei started practicing the spiritual energy from the upper realm, he has never absorbed the spiritual energy from the upper realm so freely.
Even though he had cultivated the Hongdong Shengyuan Sutra to the twelfth level of perfection, there was still a huge world between them, and the speed at which he absorbed spiritual energy from the upper realm was by no means so smooth.
But at this moment, Chen Lei was extremely happy, absorbing and refining the spiritual energy from the upper realm to his heart's content.
The spiritual energy in his body continued to increase at a very fast speed.
I don’t know how much time has passed, but Chen Lei only feels that his cultivation has directly broken through to the fourth level of the Heavenly Monarch Realm.
If it were in the outside world, it would take countless years to break through to the fourth level, but here, it is easy to break through.
Of course, after breaking through to the fourth level of the Heavenly Monarch Realm, Chen Lei is still no match for Shen Mingzhou, and he still needs to continue to practice hard.
Chen Lei had no intention of exploring other places in this secret realm. He sat cross-legged at the entrance, constantly absorbing and refining the endless spiritual energy from the upper realm in this secret realm.
An unknown amount of time had passed while Chen Lei was in seclusion here. As time passed, he broke through the fifth, sixth, and seventh levels one after another. Finally, Chen Lei broke through to the eighth level of the Heavenly Monarch Realm.
After breaking through to the eighth level of the Heavenly Monarch Realm, Chen Lei's speed in absorbing and refining the spiritual energy from the upper realm slowed down.
The reason why his speed of absorbing and refining the spiritual energy from the upper realm slowed down was because the spiritual energy from the upper realm in this area had become extremely thin, almost equivalent to the spiritual energy from the upper realm in his body.
Under such circumstances, it was naturally difficult for him to improve his cultivation quickly.
"During this period of time, I have only been improving my cultivation, but have not practiced any techniques. Now, it is time to comprehend the techniques for a while."
Chen Lei sat cross-legged at the entrance. Although the speed of absorbing spiritual energy from the upper realm slowed down, he still had no intention of exploring the depths of the secret realm. Instead, he sat cross-legged at the entrance and began to comprehend and practice the Qingyun Divine Art, Juntian Jue and other skills.
Nowadays, the skills that Chen Lei practices are mainly based on Juntian Jue and Qingyun Shengong.
There is no conflict between the Qingyun Divine Art and the Juntian Jue. However, Juntian Jue cannot integrate the Qingyun Divine Art.
From this point of view, it can be judged that the Qingyun Divine Art is not inferior to the Juntian Jue.
Chen Lei had previously practiced the Qingyun Divine Art to the tenth level. Now, he took time out to comprehend the remaining two levels. He didn't know how much time it took, but he finally comprehended the remaining two levels. He practiced the Qingyun Divine Art to the twelfth level, the state of great perfection.