All the heavens begin with the mind-monkey.

At night, in the deserted main square, a door suddenly opened quietly. Li Shuaixi secretly peered through the door for a moment before stepping out.

He took only two steps to reach the bottom of the main god's orb, staring intently at it. He seemed hesitant, but finally he said in a fierce voice, "Main God, I want to exchange for the 'Sunflower Manual'."

A moment later, a beam of light descended, causing Li Shuaixi to fly into the air. It took him about a minute to land.

Sensing a powerful warm current within his body, Li Shuaixi instantly lifted his foot, his whole body seemingly drifting in the main god square, his figure elusive.

A moment later, he sensed something, stopped, his face flushed, almost as if it were about to bleed. After hesitating for a moment, he silently murmured something to the Supreme God again.

The next second, a flash of light appeared in his hand, revealing a short knife.

After glancing around the main square, he ultimately decided against making his move and instead returned to his room.

About half an hour later, he came out, clutching his groin, his face deathly pale, and his whole body trembling uncontrollably.

He growled in a low voice, "God, fix it now! But don't fix it completely!"

The next second, he took to the air again.

As I fell, all the pain disappeared.

He clutched his groin, feeling the emptiness, and said resentfully, "As long as I'm in the Main God Space, as long as I have the Main God's exchange and complete the Main God's tasks, I will become stronger, stronger and stronger, incomparably powerful! What Zheng Zha? I no longer care about him! Even Sun Wukong, hehe, in the future I might become the Great Sage Equal to Heaven, the Victorious Fighting Buddha!"

Li Shuaixi pulled out three slender embroidery needles from his waist, casually pointed them, and a burst of light appeared in mid-air as the needles landed firmly on the ground of the main square.

He then pulled hard, and with a clang, the three embroidery needles were returned to his hand. Li Shuaixi, with his delicate fingers raised, swayed back to his room.

At this moment, the daylight gradually brightened in Zhe Xingsun's room.

Zheng Zha and the others slept soundly in the Water Curtain Cave until dawn.

Zheng Zha stretched on a stone bed, threw off the covers, got up, and walked to the center of the cave.

He then noticed that everyone had already gotten up.

Breathing in the fresh, natural air of the Water Curtain Cave, Zheng Zha couldn't help but exclaim with some emotion, "Truly a blessed land of Flower and Fruit Mountain, a paradise on earth like the Water Curtain Cave! I originally thought that with such a noisy waterfall, I might not be able to fall asleep at night, but I slept so soundly. And I don't know if it's just my imagination, but I feel as if sleeping here has completely washed away all the fatigue in my body."

Chu Xuan was inside the Water Curtain Cave, holding some strange machines and researching something.

Upon hearing Zheng Zha's words, he said, "If we use a more fantastical, chivalrous way of saying it, then the Water Curtain Cave is a blessed land, a place where spiritual energy endures, making it a better place to rest. Moreover, the original novel 'Journey to the West' records: 'There is a place to hide from the wind, a good place to shelter from the rain. There is no fear of frost and snow, and thunder is never heard. The clouds and mist always shine, and auspicious omens always rise. The pines and bamboos grow taller every year, and the rare flowers bloom new every day.' It can be seen that the Water Curtain Cave is an excellent place for self-cultivation."

Hearing Chu Xuan's words, Zhang Jie asked with some curiosity, "From what you're saying, it seems there's a more scientific explanation?"

Chu Xuan replied, "To put it more scientifically, the feng shui here is quite good."

Hearing Chu Xuan's words, Li Xiaoyi looked surprised and said, "If we're talking about science, shouldn't you say the magnetic field and lighting here are better? Why is there anything about feng shui? Is feng shui a science?"

Chu Xuan said, "In our research, science doesn't necessarily refer to things whose principles and results have been fully discovered. Some laws that are effective but whose causes are not yet clear can also be considered science. If we divide it this way, Feng Shui and ancient Chinese medicine are actually sciences, it's just that we haven't discovered the scientific laws behind them yet."

"However, I can also explain it simply. It's not about superstition or anything like that. Modern science hasn't yet fully researched what kind of magnetic field is beneficial to the human body and what kind of magnetic field would be harmful to the human body in the long run. But when you rest in the Water Curtain Cave, you can hear the somewhat noisy sound of the waterfall, but when you rest here, you don't feel that the sound of the waterfall is noisy. On the contrary, you rest very well."

"The reason is that when we humans evolved from monkeys in ancient times, during the selection of our genes, what was imprinted deep in our genes was that we humans could rest well in some regular noisy environments."

"But such a noisy environment could be the sound of thunder, rain, or waterfalls, because in these environments, most of the time, we have found a place of rest, a place where we can truly rest peacefully without being discovered by external enemies."

"Therefore, sometimes, sounds like thunder and rain can have a hypnotic effect on us. The sound of the waterfall in the Water Curtain Cave works on the same principle, and it makes it easier for people to fall asleep peacefully."

"There is also the environment of the Water Curtain Cave. It connects to the sea below, the cave is vast, and even pine, bamboo and exotic flowers can grow in the cave. There are natural light-transmitting places in the cave ceiling, which can ensure daily sunlight and air circulation."

"These naturally formed caves are even more beneficial to human living environments than modern houses built with reinforced concrete. Of course, I'm just giving a brief overview here. The reason why the Water Curtain Cave can provide a peaceful place to rest is certainly not that simple. But studying it would probably require a lot of effort."

Zheng Zha said, "In that case, there's no need to study it anymore. As long as we can rest peacefully, that's fine. Alas, it's a pity that I can't completely recreate this Water Curtain Cave in my own room, otherwise I really want to live here for a long time."

Just then, Zhe Xingsun suddenly walked over from the iron bridge outside the Water Curtain Cave.

He said, "If you're interested, brother, you might as well move in permanently. Anyway, this grotto is empty and desolate now that my children aren't here. If you and your sister-in-law were willing to move in, it would be much more lively."

Hearing this, Zheng Zha was somewhat tempted, while Zhang Jie immediately exclaimed, "That's great! I quite like Brother Monkey's Water Curtain Cave. The stone house I lived in before was even more comfortable than the villa I got from the Main God. Don't try to take it from me!"

Everyone laughed when they heard this, and decided that they wanted to move over.

Just then, Zheng Zha suddenly noticed something was wrong.

He carefully examined Zhe Xingsun and suddenly said, "Brother Monkey, why do I feel that you look somewhat different from yesterday?"

Upon hearing Zheng Zha's words, Zhe Xingsun said, "I didn't expect my brother to be so perceptive. Indeed, last night I spent some time cultivating the three secret manuals I exchanged from the main god. Now that my qi has circulated throughout my body, I feel that my skills are much more agile than yesterday."

Zheng Zha wasn't surprised to hear this, but he still said with some envy, "I didn't expect Brother Monkey to master three secret manuals in half a day. If I hadn't exchanged them from the main god, I might not have been able to master them even after half a year."

Zhan Lan laughed from the side, "Then you overestimate yourself. In half a year, you might not even have understood the records and metaphors in the basic internal skills."

Zhan Lan also spent some time looking at the three manuals last night, but found that she couldn't understand many parts because of the metaphors.

For example, she didn't quite understand what "a single sip divides the mountain inkstone, dragons move and tigers run" or "hold your breath and rub your hands until they are warm, then massage your back and anus" meant.

Moreover, these internal energy cultivation manuals are all filled with similar phrases, and trying to understand them all would take more effort than studying an entire subject in college.

Zheng Zha chuckled awkwardly twice, then changed the subject, saying, "Brother Monkey has actually mastered the internal energy manual and even broken through the Heavenly Cycle. How about we test your skills now? Or perhaps we could exchange them for an advanced martial arts manual from the Main God?"

Upon hearing this, Zhe Xingsun was somewhat moved, but then said, "Brother is quite right. However, although I have now circulated my Qi throughout my body, I have not yet achieved perfect Qi circulation, and I still need to spend some time cultivating."

Chu Xuan said from the side, "Now that the Qi has circulated throughout the body, it doesn't necessarily have to rely entirely on one's own cultivation to achieve perfect Qi circulation. Exchanging some external items can also help Wukong achieve perfect Qi circulation. Let's go to the main god first."

Everyone followed Chu Xuan, walked out of the iron bridge, opened the door to Zhe Xingsun's room, and went out.

Chu Xuan said, "You can search for it on the main god's website. There's an exchange item called 'Rotten Peach'."