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第十七章 尝试中品丹

Lin Xuan had already gained a preliminary grasp of the application of blue light points, but whether this was its full secret or just the tip of the iceberg, he decided to continue exploring.

From the jade bottle, he poured out a pill. This wasn't a waste pill; it was an excellent essence cleansing pill obtained from Zhou Yan.

Could waste pills be purified further? Could lower-grade essence cleansing pills also be refined and upgraded?

Lin Xuan wanted to try!

After all, within the cultivation world, every kind of spirit herb could be divided into four grades: inferior, middle, superior, and supreme. The grading of these herbs mainly depended on the impurities they contained; materials themselves didn't differ much. The more impurities there were, the more dispersed the useful essence became, resulting in poorer effects after consumption.

In contrast, higher-grade pills had fewer impurities and a more concentrated essence, leading to better results when consumed. Of course, the higher the grade of the pill, the harder it was to refine.

Generally speaking, if an herb contained over 70% impurities, it was called a waste pill; inferior pills had about 50%, middle-grade ones around 30%, superior ones 10%, and supreme pills only 2-3%.

For thousands of years in the cultivation world, they had been trying to reduce the impurities in their pills with little success. Countless masters and clever individuals had put in countless efforts but reaped meager results. Today, most spirit herbs like essence cleansing pills, foundation establishing pills, primordial nurturing pills, and nine transformations pills were mostly inferior-grade.

Now, Lin Xuan wanted to push further. Since the Star Sea could purify waste pills into inferior ones, could it also refine inferior pills into middle-grade ones?

Theoretically, this should be possible. Lin Xuan sat cross-legged, holding a pill that was completely snow-white in his hand. The blue light points gathered within his dantian.

After over a month of practice, especially after breaking through the second layer of the灵动期 (Flexible Spirit Period), his strength had greatly increased. Controlling the blue light to perform the grand circulation cycle no longer felt awkward.

But Lin Xuan didn't let his guard down; today was an attempt at something new. He released all his divine sense and watched as the light points flowed through his meridians, then focused on the essence cleansing pill in his hand.

After breaking through the second layer of the灵动期, Lin Xuan's various numerical values had doubled. Besides spirit energy, his divine sense had also significantly strengthened. Previously, he could only observe changes on the surface of the pill; now, he could penetrate into its interior.

The essence cleansing pill was magnified several times in his mind, revealing every detail. From the outside, it appeared completely white, but inside, Lin Xuan noticed a few black threads intertwined with the white parts—these were impurities.

His task was to expel these useless elements.

The blue light points penetrated through his skin and entered the pill's interior. Previously, he couldn't observe this process; all he could do was control the speed of the blue light flow.

Now, with enhanced divine sense, he could enter the pill's interior and study the purification process more closely.

Lin Xuan controlled the speed of the light points while carefully observing them.

The blue light points entered the pill and flowed inside. White represented essence, black represented impurities. When encountering an essence part, the blue light would pass through unobstructed; when meeting an impurity, it would push it outward, consuming energy in the process.

Lin Xuan watched as a block of black impurity moved forward by a small distance each time a blue light point encountered it, eventually being expelled from the pill. Thus, the amount of impurities decreased.

The purification process was like this, Lin Xuan nodded to himself, deepening his understanding and control over the blue light.

"Can my divine sense enter the interior of the pill and control these blue light points?" Another idea sprang to mind. Since the light points flowed chaotically within the pill, the purification efficiency wasn't high. If he could control them and gather them together, the process would become much easier.

Lin Xuan began his attempt.

To control the light points that overflowed from his body, he had to attach his divine sense to them. The principle was simple—similar to the drive object technique—but execution proved challenging.

Unlike actual objects, light points were intangible and formless. For high-ranking cultivators, this might be manageable, but Lin Xuan's cultivation level was only at the second layer of the灵动期. Although his divine sense had greatly strengthened after breaking through the bottleneck, it still fell far short.

After exerting all his strength, he could only make the blue light points tremble slightly.

Lin Xuan wisely chose to abandon this attempt for now; it was too premature. He would try again once his cultivation level improved.

Thus, Lin Xuan refocused on controlling the flow of Star Sea within his body and continued with the purification process.

This process wasn't without its challenges. Soon, a new problem arose. Compared to waste pills, the impurities in inferior pills were fewer but more tightly entangled with the essence parts. Thus, separating them required consuming more blue light energy.

After an hour, the Star Sea within his dantian had shrunk to one-third of its original size and approached the warning line, unable to emit any more blue light.

When the blue light stopped, the impurities that were almost expelled from the pill rebounded and returned to their original state, tightly entwining with the essence. The pill turned a pale black.

Lin Xuan opened his eyes and looked at the ruined pill in his hand, a thoughtful expression on his face. Although this experiment hadn't succeeded, it still yielded significant gains.

Firstly, he could now enter the interior of pills to understand the purification process better, which would greatly benefit his control over the blue light.

Secondly, the blue light entering the pill's interior could still be controlled, though his current strength was insufficient. Once his divine sense became powerful enough, controlling the flow of blue light within the pill would significantly improve purification efficiency.

Experience came from continuous experimentation and learning from failures. Every trial—whether successful or not—Lin Xuan analyzed deeply.

Thanks to this approach and his bold yet meticulous nature, he gradually uncovered the secrets of the blue light points and gained a deeper understanding of them.

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