Holding the red silk grass in his hand, Lin Xuan released his divine sense, because it was the first time to purify medicinal materials, he seemed cautious.

It's a new attempt!

After entering the late stage of the Spirit, Lin Xuan's divine sense was further enhanced, and he was even more proficient in the use of blue light points, so far, he had purified thousands of pills.

But the finished pill was definitely different from the fresh medicinal herbs, and Lin Xuan could only slowly explore it again.

The blue light points are gathered and slowly flow along the meridians, overflowing from the palm of the right hand and entering the air.

In the past, when Lin Xuan first started to purify the pill, when the blue light came out of the body surface, it could not be controlled, so he could only go with the flow, some of it was scattered with the wind, and only a small part of it entered the pill for purification, which was obviously a big waste.

But there was no way, at that time, Lin Xuan's strength was weak, and it was too difficult to manipulate the qualitative and invisible points of light in the air, but now, he has entered the late stage of spiritual movement, and his divine sense has been greatly enhanced, although he has not yet learned the spiritual control technique, but the exorcism technique has been cultivated to the peak.

Borrowing the method of manipulating the spirit weapon, the divine consciousness was attached to the blue light, so that although the light spots were exposed to the air, they still gathered but did not disperse, changing with Lin Xuan's mind.

The light point was slowly sent into the medicinal materials, and at the same time, Lin Xuan separated some of his divine sense, carefully observing the changes inside the red silk grass, under the effect of the immortal method, the scene inside the red silk grass was constantly magnified.

I saw that there were two kinds of objects, cyan and red, intertwined with each other and very tightly entangled, and one of them should be impurities.

However, next, Lin Xuan encountered a new problem, cyan and red, which one is the essence and which one is the useless impurity, in the past, when purifying the elixir, the light point could be distinguished by itself, and when he encountered the essence, he would wear it, and when he encountered the impurity, he would push it forward a little, but now, the medicinal materials seemed to be different from the finished pill, whether it was cyan or red, the light point would push them.

It seems that which one is an impurity can only be distinguished by itself!

Lin Xuan hesitated for a moment, then directed the point of light to bypass the cyan object and push the red one outward.

At the same time, according to the situation, carefully control the flow speed of blue light.

......

In the blink of an eye, an hour passed.

Lin Xuan looked at the herbs in his hand, and the puddle of red powder, silent.

His judgment is not wrong, this red powder exudes a foul smell, it must be impurities, but after it is purified, the herb still has no change, Lin Xuan carefully observed its color and fragrance according to the identification method taught in the book, and even picked a leaf and tasted the medicinal properties, but the grade still did not improve, this is still a lower magenta silk grass.

How could this be, could it be that the blue light dots could only purify the elixir and had no effect on fresh herbs?

Lin Xuan was silent for a while, he didn't give up, and took out a red silk grass from the basket again, this time he did the opposite, not excluding impurities, but purifying the cyan substance that represented the essence from the herbs, manipulating the light spots, and pushing the cyan ones outward.

An hour later.

The red silk grass in his hand had withered, and in Lin Xuan's palm, a puddle of pale cyan liquid appeared, exuding a refreshing aroma.

Lin Xuan threw away the scrapped red silk grass, took out an empty jade bottle from his arms, and filled it with the green liquid.

This liquid is the essence of red aya grass, but it is purified from the inferior herbs, I wonder if there is a medicinal effect of the upper grade red aya grass?

After all, it was the first attempt to purify herbs, many things were unknown, and he needed to cross the river by feeling the stones, Lin Xuan hesitated for a moment, and took a small sip of the green liquor in the bottle.

Lin Xuan's doing this was not a reckless act, when he was in the library pavilion, he carefully flipped through the information of the red silk grass, and found it very clearly, as an important material for alchemy, this can be regarded as a nourishing herb that is beneficial to cultivation, and the green liquor is its essence, even if he can't have the effect he wants, it is at least harmless to the body.

Of course, for the sake of safety, Lin Xuan only drank a little.

Then, he sat down cross-legged and performed the method of inward vision, looking inside his body, and in an instant, the power of the medicine was released.

After drinking the green liquor, it turned into a gas and entered the dantian, Lin Xuan was a little nervous in his heart, the dantian is where the spiritual power is stored, the foundation of cultivation is not the slightest mistake.

Mobilize spiritual power, be ready to be prepared, and if something goes wrong, you will expel the gas that the green liquefaction has turned into from the earth.

Fortunately, the accident did not occur, and after the gas turned into green liquor entered the dantian, it was not abnormal, it just expanded by itself, forming a transparent ball, and then it was suspended in mid-air, motionless.

The situation was a little unexpected, Lin Xuan concentrated his divine sense on the dantian, quietly observed for a while, and then gathered a little spiritual power, and lightly touched the round ball, but the spiritual power of the Dao Dao suddenly got into it and was wrapped in the ball.

Lin Xuan didn't panic, when he saw a new problem, if he wanted to deal with it, he needed to think calmly.

He found that although the spiritual power entered the sphere, the connection with his divine consciousness did not decay because of this, and he could easily control it freely.

After making this discovery, Lin Xuan immediately calmed down and began to continue trying.

......

Night fell, it was evening in the blink of an eye, Lin Xuan got up from the ground, his face was full of joy, he succeeded, although he didn't know how the magenta silk grass on the road hid his cultivation, there was no exact description in the book, it was only a brushstroke, but Lin Xuan was sure that the effect of this green liquor hidden cultivation was better.

The process is very simple, after drinking it, the green liquor will turn into gas and form a ball in the dantian, and then you can inject spiritual power into the ball.

The ball will not cut off the control of one's divine consciousness over spiritual power, that is to say, the spiritual power can enter and exit at will, and it will not affect oneself in the slightest to cast spells and fight against the enemy, but after the ball wraps the spiritual power, it can cut off the detection of others, that is to say, this part of the spiritual power, the other party will not be able to find it.

As we all know, the judgment of the strength of a cultivator is the size of the spiritual power, since the spiritual power is hidden, so that the other party cannot judge, the goal of hiding the strength is naturally achieved.