At this moment, He Lingfeng closed his eyes again, looked inward, and sank into the dantian space, but saw that there was an empty void inside, and the secret barrier that was originally used to separate the dantian qi sea had all disappeared, and only in the center of the dantian there was a pill-like object with a five-colored light circulating and looking only slightly larger than a thumb, and there was a true flame of true fire that also flickered in five colors and burned quietly for more than half an inch.

This pill is the common characteristic of monks who have entered the stage of cultivating into the Dan stage - the golden pill, and it is also the place where the aura of such monks gathers, and it is also the key point where monks in this realm need to be closely protected, and the importance is self-evident.

After having the golden pill fused with the seed of dantian true fire, the monk's spiritual energy refining will naturally be directly handed over to the golden pill for processing, and the volume of the golden pill will increase with the increase of the monk's refining, and after reaching a certain level, you can try to transform the golden pill into a baby and enter the next realm. And in this process of continuous refining of aura, the dantian true fire fused in the golden pill will become more and more refined, and after it is completely stabilized, it can be called the danhuo, and the power will naturally be further enhanced. It can be said that the fusion of Jindan and True Fire complement each other, and both can be used to grow.

After checking it out, seeing that everything was normal with Jin Dan, He Lingfeng slowly opened his eyes, and the joy of Ji Dan's success had been subdued by him, and he began to think about other things.

He first checked a chronometer and determined the specific time of the moment, his brow furrowed slightly, but he fell into deep thought.

Thinking back to the scene when he left Tianyi Sect, at that time he had just succeeded in building a foundation, and until today, it has been more than seven and a half years since he stepped into the realm of Yudan. Even if there were five-colored spirit stones and pills sent by Tianyi Zhenren later in the middle, it still took so long. This is nearly two years more than the more than five years he expected when he first obtained the five-colored spirit stone, and it seems that the cultivation journey is really difficult, even if there is a shortcut to increase mana, it will not be too fast.

He Lingfeng shook his head slightly, then put down this thought, and for a moment, he thought about the things mentioned in the secret letter sent by Tianyi Zhenren before the last retreat.

Tianyi Zhenren bluntly said in the letter that after he learned that the Xuantian Secret Vault was opened, he thought that this was a key opportunity for He Lingfeng's future cultivation, because there were two things in the Xuantian Secret Vault that He Lingfeng had to get, and if he missed this time, with the degree of cherishment of these two items, if he wanted to find them, he would not know that it was the Year of the Monkey and the Moon, and maybe it would be impossible for a lifetime.

And if you want to enter the secret vault, you must have a cultivation in the Dan period, so Tianyi Zhenren brought several bottles of the elixir of entering the cultivation and the bottle of Shenyu liquid that was of great help to him in the Dan with the secret letter.

Fortunately, He Lingfeng lived up to his expectations and finally succeeded in forming the pill before the vault was fully opened, but with his cultivation in the early stage of the pill, it was really difficult to enter the inner mansion of the Xuantian Vault and get these two things first among the many treasure hunting monks. However, He Lingfeng had already made a decision after thinking about it after reading the secret letter, that is, if he could open the advanced stage of the Dan stage in the secret treasure this time, he would have to go in and find it no matter how difficult it was. If he can't catch up, he doesn't have enough chances, so he can only give up.

Speaking of which, I have to mention that when Tianyi Zhenren borrowed someone from Wang Fugui, he mentioned a special magical power unique to the fairy spirit jade body - Fairy Spirit Tianmu. At that time, Tianyi Zhenren told He Lingfeng that if he wanted to have this magical power, he had to supplement it with special exercises and pills to cultivate, and he had to have another chance to become a great success. And this exercise and the elixir are the purpose of He Lingfeng's entry into the secret vault, and the exercises come from the "Immortal Spirit Treasure Scroll", which not only records the special exercises for cultivating the Immortal Spirit Heavenly Purpose, but also several other secret techniques that are unique for those who have a fairy spirit jade body. And that elixir is called Tianmu Dan, and people with immortal spirit jade bodies can only cultivate immortal spirit Tianmu by taking this elixir and cooperating with that exercise.

As for why there are these two things in the Xuantian Secret Collection, although Tianyi Zhenren did not mention them in the letter, with He Lingfeng's intelligence, after a little thought, it was clear in his heart, this was already very obvious, that is, the owner of this cave space, that ancient cultivator Xuantian was himself an immortal spirit jade body.

However, Tianyi Zhenren also mentioned some dangers in the secret treasure in the letter at that time, and there were several places that ordinary Jiedan monks could resist at all, and it would not be an exaggeration to say that he would die if he touched it, so He Lingfeng's expression changed several times when he first read the letter.

Now that the golden pill has ended, He Lingfeng naturally doesn't want to miss this rare opportunity for him because of these dangers. The most important thing is that as he integrates and understands the cultivation realm, he gradually understands some things.

He has a blood feud, and in the future, he will personally find the cloudy sky to fight, so that he can slash the enemy. The latter, as a mid-Yuan Infant Cultivator, is not easy to deal with, in the face of such an enemy who has been famous for many years, even if he advances to the Yuan Infant Stage in the future, he has the Five Elements Spiritual Root far stronger and stronger than the monks of the same level to rely on, and he can fight with it, but he still can't be sure of killing it, unless he can trap the other party and consume him alive. And those who can easily kill monks of the same level are all relying on powerful secret techniques and magic weapons. Since this Xuantian Secret Collection has the "Immortal Spirit Treasure Scroll", a classic of exercises and secret techniques created for the immortal spirit jade body, how could he easily give up such an opportunity to improve his strength, if he learned the secret technique and advanced to the Yuan Infant in the future, he might be able to use this to kill the Yin Tian Owl with his early cultivation.

With this in mind, it was naturally imperative for He Lingfeng to enter the Vault. Therefore, after the success of Yudan, he did not hesitate to prepare for this matter.

At this time, there were only more than three months left before the vault was fully opened, and He Lingfeng did not dare to delay for a moment, and next, he first spent more than a month completely consolidating his cultivation, transforming the true fire in the dantian into the danhuo, so as to further refine the natal flying sword "Taixuan". After that, he seized the remaining time to comprehend and perfect the four sword moves of the second layer of the seven-star sword rank of the "Nine-Star Sword Technique" that had already been comprehended last time, but could not fully exert their power due to their cultivation being too low. As a result, He Lingfeng had one more reliance on entering the Vault.

During this period, He Lingfeng also learned that the people who were going to enter the secret vault this time had already set off in advance, and the master and senior brother Chen Jiaolong also went to the nameless barren mountain to wait with them, only the second senior brother stayed behind, and his mysterious third senior brother, who had never met before, was said to have returned to the sect a year ago, and this time he was also among the people of the Wanhua Immortal Sect who were preparing to enter the vault.

After He Lingfeng prepared everything, there were more than twenty days left before the vault was fully opened, and the Longhua Mountain, where the sect was located, was also quite far away from the nameless barren mountain in the west of Yanyun Kingdom.

He Lingfeng stepped on the Splitting Spirit Sword and flew along the way, and only rested every three days to recover his mana, except for the occasional encounter with some monks whose cultivation ranged from Qi refining to foundation building, he did not encounter monks above the Dan stage, so it was also smooth sailing, and he arrived at his destination just after noon on the sixteenth day.

He Lingfeng Imperial Sword hovered in mid-air, looking at the nameless barren mountain that was surrounded by the stations of the eight major sects and the four foreign sects, as well as the many powerful aura fluctuations emanating from these places, he couldn't help frowning, and his estimate of the difficulty of this trip increased by a few points. With a secret sigh in his heart, He Lingfeng didn't think much about it afterwards, his eyes swept away, and he found the sign of his sect's station, and immediately landed there with a press of the light.

After meeting with Master and the others, He Lingfeng also had a detailed understanding of the arrangements for the Wanhua Immortal Sect to enter the secret vault this time.

The sect now has two Xuantian Crystals, so a total of twenty people can be sent in. Originally, He Lingfeng was not on the list of entering the Vault, but when He Lingfeng informed the master of the reason why he had to enter it, Wang Fugui once again pulled down his old face and went to rub his mouth with his senior brother Lu Jizi, who was the head of the house, and finally asked for a place for him.

Five days later, the entrance to the space of the Xuantian Secret Vault was completely stabilized, and the inner mansion was already accessible, and the monks surrounding this place entered it one after another, and He Lingfeng was naturally among them.