The immortality of the god of grains is called the Xuan, and the gate of the Xuanqi is the root of heaven and earth.

Yun Yao felt that she had lost consciousness and had auditory hallucinations, as if Lao Tzu was preaching, and she was still talking about the truth of the immortality of the god of grains, and she had a similar feeling when she grafted the black lotus before, that is, emptiness.

Emptiness is one of Lao Jun's core ideas, but Yun Yao has never understood how to be empty, what is emptiness, if he really doesn't do anything, if he is really empty, then it's not lying flat and rotten, isn't it just giving up?

Now she is trying to wrestle with the Heavenly Wheel, but the strength of the cyclone is too great for the four of them to stop, let alone Yun Yao. But Yun Yao didn't want to give up, she was still trying to persevere, hoping to hold on until the moment the sage made a move. Originally, his strength was small enough, so how could he let it go? Isn't there nothing left after emptying?

But the sentence 'The god of grains is immortal, it is called Xuanyi, the gate of Xuanjiao, and it is the root of heaven and earth' is like an old Taoist priest chanting scriptures constantly circulating in his mind, which makes Yunyao very helpless.

What does that mean exactly?

Immortals are gates, and the gates of heaven are immortals.

Modern Zhu Cheng's view of cultivating immortals, the process of resource immortalization is cultivating immortals. Immortals are systems that are independent of the Heavenly Dao and can output innovation.

Output and input, entry and exit, so if the immortals have no personal will, aren't the immortals just a door? The Immortal is a gate with will, providing access to resources and spells.

The Heavenly Immortal is the gate of the Heavenly Dao, the gate that allows the Heavenly Dao to enter and exit.

Therefore, Lao Jun said that the god of grains is immortal, which is called Xuanqi, so he sent to tell the monks of the world to become the gate of the Heavenly Dao, and let the Heavenly Dao enter and exit.

The door is a frame, there is nothing in it, the immortal just wants to make a frame, the bigger the frame, the smoother the entry and exit of the heavenly dao. Therefore, Pangu can be said to be the ancestor of all immortals, because he is the first door frame created by the Heavenly Dao, and the power of the Heavenly Dao has had an effect on the chaos for the first time through Pangu.

Heavenly immortals are to accept the test and bear the power of the Heavenly Dao, if they can persevere, it will be a good door frame, and they will be able to let the Heavenly Dao enter and exit. Of course, it is up to the immortal to open or close the door himself, whether to open the door to meet the Heavenly Dao or close the door to continue cultivating by himself, it is up to the immortal to choose. The Heavenly Immortal is a door to the Heavenly Dao with its own meaning.

Hongjun chose to open the door, and the six saints are currently half-open and half-closed, not fully open but not fully closed. As for the other Heavenly Immortals, although they could borrow the power of the Heavenly Dao, they couldn't tell which one was the Heavenly Dao in the face of the various energies coming in and out of their bodies, so they still needed to hone their skills.

But if you want to become a celestial, you must first become a door frame with qualified strength. And isn't the most important thing about the door frame being empty? If it's a solid door frame, it's called a barricade.

So Lao Jun really hid everything in the Tao Te Ching, the highest state of the immortals is to make a door frame, the more empty the better, so that the way of heaven can be shown through the immortals.

The god of grains is immortal, the valley is empty, the door frame is empty, the cup is empty, and only emptiness is what the Heavenly Dao needs most, because through the void, the Heavenly Dao can be revealed.

At this time, the heavenly wheel was pulling Yun Yao's soul, and her door was slowly opening, which was the test that every heavenly immortal had to go through, that is, the strength test of the door frame.

If the door frame is not strong enough, the Heavenly Dao will not be able to pass through the door opening.

Of course, to say that immortals are a door is just an abstract metaphor, and the situation of immortals is more complicated.

The door frame that makes up the house only needs four materials, and the immortals that make up the immortals are flesh and bones, soul and intelligence, and they can all accept the strength test, which makes the gate of the Heavenly Dao very complicated.

Because there are various ways to show the Heavenly Dao, some Heavenly Dao needs the body of the Heavenly Immortals, some need the wisdom of the Heavenly Immortals, and some need the reflexes of the Heavenly Immortals, in short, there are many ways to show the Heavenly Dao, so the Heavenly Immortals only need one aspect to pass the test.

Therefore, although there are few immortals, not every immortal has the same strength, some are physically qualified, some are spiritually qualified, and some are qualified in mana...... Because of this, the test of each immortal is also different.

The Heavenly Dao will not require every door to be of uniform standard, because it is difficult to achieve, but each door must have a different style that can show different aspects of the Heavenly Dao.

The test is coming, if Yun Yao can survive it, then she can become a celestial immortal, if she can't survive, she can only go back to the furnace and rebuild. After all, if the quality is not up to par, the Heavenly Dao cannot be used. Cultivating immortals is never for the sake of cultivating immortals for oneself, and cultivating immortals is also responsible for the way of heaven.

Now Yun Yao's test is mainly in terms of spirit and mana, and whether the quality of the door frame can pass the test depends on now.

Yun Yao's teachings came out of Lao Jun's mind, and after playing them in a loop, he gradually became clearer and understood the value of heavenly immortals and even saints, that is, as the gate of the Heavenly Dao in the Three Realms, the Heavenly Dao could interfere with the material universe.

As for what Heavenly Dao wanted to do, no one knew. Even the Heavenly Dao may not do anything, but things can not be done, and the door cannot be without.

"I understand, it turns out that Hongmeng Purple Qi is the door that Heavenly Dao did not succeed in casting in the first place. And the pseudo-Hongmeng Purple Qi is an incomplete gate born in the Three Realms that tries to connect with the Heavenly Dao. Yun Yao figured everything out in a trance, the difference between the two is that one is that the Heavenly Dao opens the door to the Three Realms, and the other is that the Three Realms open the door to the Heavenly Dao, in fact, the essence is the door, but the direction of the opening is different.

If Hongmeng purple qi completely becomes a door, it is Pangu, Pangu is the only gate opened by the Heavenly Dao, and the other Hongmeng purple qi is not successful, so it needs to be used with the immortals, that is, saints.

And the pseudo-Hongmeng purple qi in Yun Yao's body was after the Three Realms were formed, and the Three Realms tried to open the door to the Heavenly Dao, but it was unsuccessful and was obtained by Yun Yao.

The Heavenly Dao tried to lead to the Three Realms, and the Three Realms also tried to lead to the Heavenly Dao, but the door-making skills of both sides were not very good, and the Heavenly Dao only succeeded in creating a gate. Therefore, both the Heavenly Dao and the Three Realms found that they did not have the talent to make doors, so they found a profession that specialized in making doors, that is, immortals, and immortals could turn themselves into doors through practice, which could effectively communicate between the Heavenly Dao and the Three Realms and make everything work.

It turns out that Tianxian is a strong door, Yun Yao said that she understood, and now she finally understands what Lao Jun means. Lao Jun just doesn't talk about it in a popular way, what a god of ceres, what a mystery, wouldn't it be good to just say the gate.

Speaking of the gate directly, Yun Yao will not understand, only when he reaches a certain realm and accepts the test of the heavenly immortals, can he truly understand the role of emptiness. Otherwise, just talking about the door, Yun Yao only thinks of the door frame and door panel, and he will not think of empty at all. With emptiness, the way of heaven can pass through, and to master emptiness, you need a pure heart. The precondition for the heart of a child is the five qi in the chest and the three flowers on the top.

Only after completing these tests can one truly understand the meaning of 'emptiness' and truly understand how to become a qualified celestial.

At this moment, Yun Yao always understood that he was a door frame, he had nothing, and if his door frame was not strong enough, it would be meaningless and he would not be able to become an immortal.

Now I can't give up, I have to compare the strength with the Tianlun cyclone, whether it is my own door frame or the other party's wheel.

In the end, the cultivation of immortals was unpretentious, as if returning to the era of the Eastern Zhou Dynasty, back to the era when every door frame and wheel were high-tech. The Heavenly Dao also needs a door, and the door of the Heavenly Dao is more high-end, and everyone is scrambling to make the door frame so that the Heavenly Dao can enter and exit.