Shi Babao looked him up and down and said, "Building foundation requires the creation of a purple mansion space. You have enough fire spirit energy now, and you also have a fire pillar that supports the sky. As long as there are four spiritual fires of the same level, you can support the sky. The higher the spiritual fire level of the Tianzhu, the larger the purple mansion space you open up. Which level of spiritual fire do you want to use to make the Tianzhu?"

Qin Di said: "I have one middle-class in the heavenly stage, two lower-class in the heavenly stage, three upper-class in the earthly stage, four middle-class in the earthly stage, and ten lower-class in the earthly stage. Master, which one should I use?"

Shi Babao pondered and said, "If it is a simple fire-type foundation building, no matter which level of Tianzhu spiritual fire it is, I can get it for you. But you also have to consider the wood-type foundation building, which is a bit complicated."

Qin Di felt a little headache: "Yes, what should I do if the wood-based foundation is built? Wood can produce fire, but fire can overcome wood, and the two cannot get too close. How to build into a purple mansion world?"

Shi Babao replied: "There is a way. There are also ways to builders of the Zi Mansion in the sect, which specializes in solving such problems. As far as I know, there are generally two methods like you. One is a parallel structure and the other is a complex structure. I wonder which one you want?"

"Master, what is a parallel structure?"

"The parallel structure means dividing the Zifu World into two, just like the current Yin and Yang Qi bottles, which do not interfere with each other, and form two independent golden elixirs in the future, and then form two Nascent Souls and two independent Dharma images. However, when you step into the Buxu Hedao in the future, there will still be troubles, because you will still encounter the same problem at that time, which is how to build the Cave Heaven World. If a person has two Cave Heaven Worlds, he needs one mind and two uses, so someone kills the three corpses, or one qi transforms into the Three Pure One. Although some people succeed, it is very difficult."

"What if it is a complex structure? What's the situation?"

"There are many construction patterns for complex structures. The most common one is to arrange four pillars of fire that support the sky at the four corners of the Zifu World, and then build a towering tree in the center. In the future, the wood resides inside and fire resides outside, forming two layers of golden elixirs inside and outside, and the wood heart and fire are like the Nascent Soul Dharma image, such as a phoenix living on a sycamore tree. However, in this way, it is necessary to balance the levels of both the wood and the fire, and the large tree in the center must be higher than the surrounding spiritual fire pillars, and the higher the level, the better. If you can find the legendary Jianmu or other spiritual wood in the fairy world, I will give you the heavenly level spiritual fire, then you can open up a purple mansion space of thousands of feet in size, and you will definitely advance to a celestial immortal in the future!"

Qin Di grinned: "Master, where should I go to find Jianmu? What I can find now may be the ninth-level spiritual tree."

Shi Babao said: "The ninth-level spiritual tree is not bad either. You can choose the top-grade spiritual fire of the Earth-level as the pillar of heaven to open up a thousand-foot-sized purple palace space. There is still hope of advancing the celestial immortal in the future."

"What if it was an eighth-level spiritual tree?"

"The eighth-level spiritual tree can only be matched with the middle-grade spiritual fire of the earth level. It is good to be able to cultivate to the spirit immortal at most in the future. If it is a seventh-level spiritual tree, it can only cultivate to the realm of Taoism in the future, just like me. I am the two spiritual roots of gold and fire. I was unable to climb to the Heavenly Pillar and enter the spiritual world because the spiritual material I chose was a little lower, so I had to run to the Dead Sea to seek a chance to re-cultivate with memory."

Speaking of this, Shi Babao couldn't help but sigh: "My qualifications were not good back then, so I was not valued by the masters, and I got too few materials. Later, I worked hard to practice fire artifacts and refining weapons, and finally became a master of weapon refining. By exchanging Tongtian Lingbao, I obtained a large number of advanced gold and fire materials, but it was too late! Because the foundation was broken, the subsequent entry was limited, and no matter how hard I tried, it would be useless."

Qin Di hurriedly said, "It's time to come, Master, don't be sad. Let me talk about it, what if it is a spiritual tree below the sixth level?"

"The sixth-level spiritual tree can only use the Xuan-level spiritual fire as the heavenly pillar. He will be lucky if he can cultivate to the Nascent Soul in the future. If it is a third-level spiritual tree, it can only be matched with the yellow-level spiritual fire. Even if it can barely build a foundation, it will not be able to form a golden elixir, but it will only extend its life span by hundreds of years."

Qin Di said: "I didn't expect this big tree that supports the sky is so important! Master, please let me think about it and see if I can find a big tree of the immortal level."

Shi Babao added: "There is no need for a towering tree. This is just the foundation building stage. When the journey of immortal cultivation begins, just one immortal sapling is enough! In the future, as the cultivation level improves, the saplings will gradually grow. When they enter the stage of the Tao, they will become the foundation of the cave world."

"Thank you, Master, I'll go find the fairy tree seedlings now."

Shi Babao laughed and said, "Brave nonsense! This is the mortal world, where can I find the immortal tree seedling? I just said casually that if you can find the ninth-level spiritual tree, you can build the foundation without regrets in your heart!"

After leaving the cave world, Qin Di whispered: "Little Peach Hole, you heard it just now. I need fairy tree saplings. Can you cut a small branch for me and be the support tree in my purple mansion world?"

An exaggerated scream came from his stomach: "Oh, no, no! If you want to cut my fingers, that's absolutely not possible! It hurts so much!"

"What should I do? If I don't have fairy tree seedlings, I can only choose a ninth-level spiritual tree. I can't become a celestial immortal in the future. How can I go to the fairy world? If I can't go to the fairy world, you can only be trapped in the human world for the rest of my life. We are one tree and we are both sick and sympathetic. What do you think?"

"It is absolutely impossible to cut your fingers! But I can be that big tree! I am the third level of the immortal. Isn't it more than enough to be your central pillar that supports the sky?"

Qin Di was delighted and asked, "What about the future? You always have to come out and find a fairy field outside to take root, right?"

Xiao Taohe heard a cry of a whisper: "When you reach the realm of the celestial immortal, you will practice the heavenly strips. Where can you practice it? Besides, by then, you will reveal the cave heaven and the big world, who can tell the difference between inside and outside?"

Qin Dixin said in his heart: "It would be even better if there is a small peach pit as a pillar."

It was still midnight, and it was still early before dawn, and he flashed and entered the Cave World again.

"Master, I'm back again! I found the fairy tree sapling!"

Shi Babao was surprised: "Ah? I really found it? How is this possible? Take it to me and take a look!"

Qin Di patted his belly and said, "It refuses to come out and hides in its belly."

Shi Babao's eyes shone, but he could not see the small saplings in his dantian: "Where is it? Why can't he see it?"

Qin Di shouted: "Master, really, I didn't lie to you."
Chapter completed!