The Heaven devouring rat formed a strange and profound seal, and the slightly weak aura on her body abruptly increased dramatically. Her essence, energy, and mind were all gathered at an unprecedented level, reaching their peak and even becoming stronger than when she was at her peak.

Ling Yun frowned, a gold light circulated in his eyes, and the mysterious rune flowed out, releasing a bizarre Qi.

Although he was still unable to see the circulation path of the Heaven devouring rat's spirit energy, he knew that it was definitely an extremely powerful secret art. It could let a person's spirit and spirit gather as much as they ever had, allowing them to see through everything and achieve an extremely strong effect that would allow them to achieve twice the results with half the effort.

However, even though it could enhance the concentration of one's energy for a short period of time, this secret technique consumed a lot of energy. He wouldn't be able to fight for the next ten days to half a month, and would be somewhat slow in doing anything.

What was essence, energy, and divine?

Vitality was the foundation of a person. If a person did not have essence, energy, and spirit, they would be a walking corpse without a soul, spirit, blood essence, all of its blood essence, Qi, spirit energy, Strong qi, and even vitality. A spirit, was a soul, and a spiritual body.

All three were indispensable.

Once the essence, energy, and spirit had been raised to the limit, then this person's control and usage of spirit energy, Strong qi, spirit energy, and even every part of the body would have reached a terrifying level; it could be said to be perfect.

Even though Ling Yun had reincarnated into the Martial Saint, he still did not dare to reach the perfect level for the spirit energy, Strong qi, blood energy, spirit energy, and every part of his body.

What is perfection? Without an accurate definition, the most basic part is that there is no need to waste any extra energy. One can control every little bit of power and perfectly display it to the extreme.

It could be said that even if it wasn't Ling Yun, a heaven's pride level expert that defied the will of nature, even if it was an extremely ordinary expert at the early stage of Martial King, able to raise their essence, energy, and divine to the extreme in one go, even Martial King Expert would be able to battle.

This was the terror of a person's potential.

At that time, raising the concentration of essence, energy, and divine was another way to squeeze out one's potential, and one's essence, energy, and divine. After a period of time, the essence, energy, and divine would all be in a weakened state.

Ling Yun took a deep breath, his gaze becoming solemn. Although the battle with the Heaven devouring rat was short, and they had only exchanged dozens of attacks, the process was much more dangerous than the battle with the Mysterious Serpent of Nine Yin.

"Three flowers gathered at the top, five breaths at the moment!" Ling Yun's Qi sunk into his dantian and he slowly exhaled. His hands formed a seal at lightning speed and three bizarre flower images appeared behind him, as if a great dao was formed.

His aura abruptly soared as his essence energy concentrated to its limit. His eyes lit up, his mind was clear, and nothing could affect him.

At this moment, some of his doubts regarding the martial skill were easily dispelled. Those areas that he had previously felt to be difficult, in his eyes, were nothing at all. They were dazzling flaws.

There seemed to be a crisp sound in his body as the spiritual energy revolved by itself at a terrifying speed. Within the span of a breath, it had already completed one cycle. It was simply terrifying.

Ling Yun knew that this was the result of his Hungmeng Supreme Spell that he had comprehended until he reached the level of perfection, half-step into the initial stage.

An enormous amount of information suddenly surged into his mind, turning into a formidable divine ability called the "Grandmist Heaven Swallowing Technique".

Not only did it transform into information, there was also a strange energy controlling the spiritual energy to circulate it through the meridian channels of this sacred art three times.

The clogged meridians and acupoint along the way were pierced through as easily as tofu, and could not stop them at all for one thousandth of a breath.