Yue took three days to stabilise her realm and got ready to make her breakthrough. After breaking through to the 5th rank, she would be able to grow her second tail and would also get a new racial ability other than the "Phantom World". So she was really looking forward to this breakthrough.
The same was true for Li Feng. He was also looking forward to his breakthrough immensely. The reason for that was because his supreme tier cultivation technique, the Blood God Divine Scripture was something that showed its true power only after reaching the foundation establishment realm.
The Qi gathering realm was the simplest among all the relams. Here a cultivator just needed to gather as much spiritual energy as they could and turn that into Qi through their spirit root. A very straight forward process that even a foolish person could do. Obviously there were different techniques but the main gist was very simple.
In this realm, the Blood God Divine Scripture could give Li Feng the strongest possible power for the realm. But as the upper limit of the Qi gathering realm was not high, his strength would never be too strong. But by creating his foundation, he would became a true cultivator and only then would Li Feng be able to get access to the Blood God Divine Scripture's true power.
Li Feng was unable to use most of the techniques written in the scripture because his realm was not strong enough to support those techniques. But now that he was about to breakthrough to the foundation establishment realm, soon he would be able to learn all those powerful techniques.
So as soon as both of them were ready, they started preparing to start the breakthrough process. First Li Feng used his regular upgradation cards on some mind soothing pills that he had gotten from the spatial ring. Then both he and Yue swallowed those pills to calm their mind.
Then Li Feng sat down on the ground and started meditating. Yue turned into her small fox form and rolled herself on Li Feng's lap. This was her favourite position to meditate. During the meditation, Li Feng reviewed the process of the breakthrough and made sure that he was not missing anything. Yue was doing the same and was reviewing her bloodline technique thoroughly.
After making sure that they were perfectly ready, Li Feng and Yue looked at each other. Encouragement for one another was clear in their eyes. Then both of the smiled at each other with confidence. Then Li Feng took out the Divine Source Pill and poured a little spiritual energy in it.
Immediately the pill started to shine with a golden light and Li Feng felt that the area around him became a cultivation paradise. As Yue was on Li Feng's lap, she was also able to feel and enjoy it. As this state would last only for an hour, Li Feng and Yue did not waste anymore time and immediately started the breakthrough.
...
Dantian was the place where the spirit root was located and it was also the place where the spirit Qi was stored. In the Qi gathering relam, the form that the spirit Qi took was gaseous. The cultivator's control over it was very little and just a limited amount of it could completely fill the dantian. A dantian completely filled with spirit Qi was the indication of reaching the peak Qi gathering relam.
To reach the foundation establishment realm, the main aim that the cultivators had was to compress the spirit Qi and to turn it into liquid form. That was how the filled dantian would again have more space and the cultivation journey would continue.
The liquified spirit Qi would create a spiritual sea in the dantian which was the sign of being a foundation establishment realm cultivator. The spirit sea was the foundation that would allow the cultivator to create a base which would help them with the breakthroughs to the higher realms.
This was the general method to reach the foundation establishment realm. Almost all the high grade Qi gathering relam cultivators were aware of this but still very few were able to make the breakthrough. The main reason for that was because turning the gaseous spirit Qi into liquid was extremely hard.
That was why the foundation establishment pill was extremely popular. This pill assisted with the liquification process and increased the chance of reaching the foundation establishment realm.
But the quality of the liquid spirit Qi created by this process was not high if the quality of the foundation establishment pill was not good enough. So truly talented cultivators avoided using the foundation establishment pill. And depending on how talented a person was, what kind of techniques one used and what kind of Qi their dantian had, the grade of the spirit sea which was the foundation, differed greatly from person to person.
Li Feng had a supreme technique for his breakthrough, his spirit root was creating two of the absolute peak tier spirit Qi called the Celestial Origin Qi and Sacred Divine Qi and his talent was also absolutely the best. So his foundation was definitely going to be amazing.
...
On the other hand, the breakthrough process of the spirit beasts were a bit different. They would also create a spirit sea and would turn gaseous Qi into liquid Qi, but the process was a bit different. As for the exact process, it was different for each race of the beasts.
For a Nine Tailed Fox, the process was quite simple. One just needed to activate their bloodline and if the bloodline was strong enough, the process would automatically be done. But if the bloodline was not strong enough, then that beast would never be able to reach the fifth rank. And any external help that could increase the power of the bloodline was thousands of times more rare than the foundation establishment pill.
That was why, if a beast had strong enough bloodline, breaking through was as easy as eating and sleeping for it. But if the bloodline was weak, then making progress was equivalent to going to hell and coming back again and again.
As Yue had an extremely strong bloodline of the Nine-tailed Celestial Mystic Divine Fox, her breakthrough would be very simple and her base would also be extremely good. So for both Li Feng and Yue, breaking through with a supreme grade foundation was inevitable.