Chen Lei has been in the Middle Realm for some time. During this time, Chen Lei has gained a preliminary understanding of the rules of heaven and earth in the Middle Realm.
During this period, Chen Lei did not pay attention to the changes in the Source Sutra of All Things. However, now Chen Lei discovered that the Source Sutra of All Things has gradually integrated into some of the rules of heaven and earth in the Middle Realm. This change was silent, and even Chen Lei did not notice it.
Now, when he studied the Black Sun Proud Sky Art and the Purple Air Coming from the East Qi Refining Art, he discovered that the Source Sutra of All Things had evolved to such a level without his knowledge.
With the Source Sutra of All Things, Chen Lei became the first person in the Middle Realm to practice three kinds of Qi Refining Techniques at the same time.
Chen Lei now discovered that the three Qi-refining techniques he practiced, whether it was the speed of refining spiritual energy, the speed of recovery, or the power, were more than just increased by three times. After being integrated with the Source of All Things Sutra, the power of these three Qi-refining techniques was so great that even Chen Lei was surprised.
Chen Lei felt that the combination of these three Qi-refining techniques was probably not inferior to the most advanced Qi-refining techniques in the Middle Realm and could compete with them.
During the following period of time, Chen Lei devoted all his attention to cultivation. The spiritual energy in the valley was not enough to support Chen Lei's cultivation. Therefore, Chen Lei did not absorb and refine the spiritual energy in the valley, but directly drew the spiritual energy from the Lingyu Bamboo Forest.
The Lingyu Bamboo Forest contains an astonishing amount of pure spiritual energy, which Chen Lei extracted and refined. It didn't take much time to refine it into Chen Lei's own strength.
In this way, the Yuan Dan in Chen Lei's body was expanding rapidly. Finally, inside Chen Lei's body, it was like a real star, emitting terrifying pressure.
And this Yuandan, after integrating the Black Sun Aotian Qi Refining Technique and the Purple Qi Coming from the East Qi Refining Technique, became somewhat different. On the silver-shining Yuandan, there were countless black and purple symbol lines, interweaving into a mysterious formation diagram, perfectly integrated with the star-like Yuandan.
Chen Lei's cultivation lasted for more than half a year. After this period of time, Chen Lei's cultivation level made breakthroughs one after another, and he finally broke through to the seventh level of Yuandan Realm.
After breaking through to the seventh level of Yuandan Realm, Chen Lei stopped temporarily and no longer practiced hard.
Because now, every time Chen Lei advances to a higher level, the amount of spiritual energy he needs is an astronomical figure. Even the spiritual energy contained in the Lingyu Bamboo Forest is not enough to support Chen Lei to break through to the next level.
Of course, there is still a lot of pure spiritual energy in the Lingyu Bamboo Forest. However, Chen Lei does not want to drain all the spiritual energy in the Lingyu Bamboo Forest. Doing so will cause permanent damage to the Lingyu Bamboo Forest, and the loss will outweigh the gain.
Chen Lei also plans to evolve the Lingyu Bamboo Forest into Lingyu Fairy Bamboo, so he can't possibly kill all the fish.
After stopping his practice, Chen Lei began to refine talismans.
Chen Lei knew that once he came out of seclusion, he would face the pursuit and encirclement of the three major forces: the branch of the Evil God Cult, the commander-in-chief of the Purple Cloud City army, and the Purple Cloud Sect. It can be said that they are enemies all over the world, and once they appear, there will definitely be a series of fierce battles.
Although he has now broken through to the seventh level of Yuandan Realm, he cannot be careless and must be fully prepared.