Qin Mu thought to himself, since the Three Worlds, he had seen Linghu Chong, Wang Chao and the Double Dragon of the Tang World. Pen Fun Pavilion wWw. ｂiquge。 info Among them, Ling Hu Chong has nothing to say, except for the template of high talent and good luck, and Wang Chao, although he still relies on Tang Zichen's preaching, but a pure heart that is not stained with dust is really admirable, but Shuanglong, the two of them, can really only be described in four words:

Unique.

The book of longevity is rumored to be a summary of his lifelong cultivation after Guangchengzi, the teacher of the ancient Yellow Emperor, watched the God of War catalogue, and since Guangchengzi, no one has been able to cultivate.

Only when he saw the two of them, he suddenly understood the reason, because when Guang Chengzi created the secret of immortality, he had actually comprehended the realm of broken King Kong, so the secret of longevity is not a step-by-step secret book, to cultivate this secret book, only if your own realm and physical body have to reach a certain height, you can really get started.

If Qin Mu's guess is correct, the seven picture scrolls behind the Immortal Recipe can't even be regarded as the orthodox internal qi method, but the seven cultivation methods that Guang Chengzi inverted based on the supernatural power he cultivated.

Therefore, since ancient times, there have been countless people who have had the opportunity to read the secret of longevity, but there is not one in ten thousand who has really gained it, and there is no one who has attained it.

But it was these few people who had little gain, with their own enlightenment, that pushed this longevity recipe to the status of the Four Great Wonder Books.

Kou Zhong and Xu Ziling, but as if they were heavenly favors, they accidentally repaired the sixth and seventh picture scrolls, in addition to this luck is really good, but more is the good physique of the two of them, ancient and modern are difficult to have, Kou Zhong is the so-called negative yang and yin body, Xu Ziling is the shape of negative yin and yang, if these two exist alone, not to mention whether they will be jealous of heaven and cause disasters, it is themselves, they have yin and yang imbalance, and they can't be adults.

But Kou Xu and Xu grew up together since childhood. Yin and yang help each other, not only do they have no worries about their lives, but the two stimulate each other, reconcile each other, and make their physique more pure, so their qualifications are good, and in the early days, whether it was Fu Junxuan or Song Lu and others, they all regretted that they did not practice martial arts. It was precisely because of this that they had such luck to cultivate the last two picture scrolls in the longevity formula.

Although these two people have such talents, but for Qin Mu, they also have great shortcomings, one is that the two of them are too good after all, this cultivator, the body is a treasure boat to cross the river, on the shore, no matter how good this boat is, it will be discarded, at that time, this unique physique is an obstacle for these two people to move forward.

And more importantly, these two people are lively and smart, which is originally an advantage, but unfortunately they have not had a famous teacher to guide them since they were children, so when they reached adulthood, after their personalities were almost finalized, they were still only smart and not wise, and this cleverness hindered their firmness in their own path, they wanted to get anything, and they couldn't give up anything.

Kou Zhong gave up his desire for the world, and Xu Ziling gave up the pursuit of the Tao, it cannot be said that their choice was wrong, but for themselves, such a renunciation is basically giving up their lifelong path.

This is what Qin Mu said was a pity.

After Qin Mu carefully observed the two of them, he suddenly realized his own problem, his method of practicing qi was originally pieced together, the secret of the Ming was passed down by the Heavenly Wind Tower, there are some meanings of the world's demon exercises, and the Zixia Divine Skill is a comprehensive method of practicing qi from Confucianism and Taoism, he used the Tai Chi Yin and Yang theory to unify it, but it was not integrated, so his internal force itself was faintly conflicted, and now, he can't break the Great Zhou Tian.

What's more, his physical training method comes from the national arts, and his spiritual cultivation is made up of the system and the national art realm, so Qin Mu's martial arts at this time is a hodgepodge, which is not false at all.

Seeing the two of Shuanglong today, Qin Mu was overjoyed in his heart, the seven picture scrolls of the longevity recipe had been imprinted in his mind, and there was no secret at all. Qin Mu was not willing to follow in the footsteps of others, but combined with the principles of the use of the five elements of yin and yang on the seven picture scrolls, reflecting on his own practice, for a while, he was full of inspiration.

He no longer had the heart to look for the woman in white who disappeared, Fu Junxuan was just a fool who thought that he could fight against the general trend with the strength of one person, if it weren't for Fu Cailin behind her, Qin Mu would not be interested in her at all, at this time his mind was all over this cultivation, where could he control her?

Qin Mu kept walking, walking in the mountain, he not only deduced the body that was most suitable for his yin and yang true qi from the longevity recipe and the body shape of the double dragon, but also used the method of body training in the national technique and the essence of the five elements in the first five images in the longevity recipe, in turn to refine the five internal organs and improve the body function, only to see that his whole body was shining brightly, and the muscles, bones and muscles of his whole body were moving and combining, heading towards the most suitable structure for his martial arts in Qin Mu's mind.

At this time, the world is already full of smoke, the Central Plains Wagang Army and other big forces are entrenched, the north is full of warlords, and the south has Song valves ready to move.

Qin Mu walked all the way, seeing that the people's livelihood was withering, and the villages he passed by were often empty, even places with people, and only the old people who were inconvenient to walk were left, and the rest were eight-year-old children, who were also arrested and enlisted.

According to historical records, in the five years of Emperor Yang of the Sui Dynasty, the number of household registrations in the whole country was about 8.9 million households and 46 million people; by the time Li Yuan, the ancestor of the Tang Dynasty, won the world, there were only 2 million households in the whole country during the Wude period, and during the Zhenguan period of Emperor Taizong of the Tang Dynasty, the number of household registrations in the whole country was only 3 million.

The peak period of the population of the Tang Dynasty in the history books was probably at the time of Xuanzong of the Tang Dynasty, and the recorded household registration was about 8.91 million households, which coincided with the period of Emperor Yang of the Sui Dynasty.

But this is not to say that the population of Emperor Yang of the Sui Dynasty surpassed most of the Tang Dynasty, but when Emperor Wen of Sui was in office, he vigorously investigated the hidden households of the Kanto clan, and the population had an explosive growth, but during the Tang Dynasty, the power of the great clans began to rise, and the problem of hidden households reappeared, as for the population of the Tang Xuanzong period, it is generally believed that there are more than 80 million people, and it is even estimated that there are as many as 140 million people.

But in any case, the war at the end of the Sui Dynasty and the beginning of the Tang Dynasty plunged the Han people, who had just passed a few years of peace, into dire straits, and the population of the Central Plains plummeted by three-quarters, which is roughly credible.

The farther north he went, the more angry Qin Mu became, if the residents of the south were people who were in chaos, then the Han people in the north were a tragic scene that even people couldn't do.

In the north of the Sui Dynasty, there was a great power across Central Asia and East Asia - the Turks.