Soon after the silver-haired old man left, Wu Wei first felt that the climate here was changing drastically, between heaven and earth, the wind and snow had stopped, the high sun was shining, and the temperature around him was rapidly warming.

The mountains and rivers in front of him are also changing rapidly, with the ice and snow cave where the old man is retreating, the snow and icebergs within a radius of dozens of miles are melting at a speed visible to the naked eye, and the solid ice on the lake surface that is dozens of feet thick has suddenly begun to collapse.

In just a moment, the extremely cold aura dissipated on the vast ice field, and the grass, lakes, marshes, and depressions revealed their original natural appearance one by one.

Wu Wei looked at the rapid changes in the climate and environment in front of him, and couldn't help but exclaim: "What kind of cultivation can change the rules of heaven and earth in an instant..."

Before, he just felt that the silver-haired old man's Taoist cultivation was unfathomable, but he never had a specific concept, but now that he saw it with his own eyes, he was naturally shocked in his heart.

"The rumored power of monasticism can move mountains and reclaim the sea and cut off the galaxy with a single hand, and even more, they can pluck the stars with their bare hands and catch the bright moon in the middle of the sea... It's all an unbelievable supernatural means. At this time, the old man of the Yin Spirit suddenly opened his mouth leisurely, and his words, which had always been profound, were actually full of awe: "The one just now... I don't think it's as good as it seems, but it's not much different..."

"That senior has a high humane law through the sky, and he has never known me in his life, but how could he suddenly give me a great benefit..."Wu Wei has always been puzzled by this, and at this time, seeing the old man of the Yin Spirit wake up, he can't help asking.

"How can we figure out what the predecessors did. The old man of the Yin Spirit changed his cunning appearance in the past, and he was serious, and there seemed to be a hint of envy in his tone: "Boy, you should treat it as a strange creation..."

Wu Wei was silent for a while, and he didn't bother to dwell on this cause and effect after thinking about it to no avail.

At this time, he caught a glimpse of the ice cave in front of him where the Nian Array was arranged, and it gradually melted into a puddle of snow, and the defensive power of the Nian Array also disappeared.

He approached the melting ice cave, the extremely cold qi around him had not completely dissipated, and he felt the cold spiritual power that penetrated into his bones, only to feel that his mind suddenly became clear, and the spiritual power qi mass on the spiritual platform actually showed signs of condensation.

"It's terrifying..."The more Wu Wei thought about it, the more frightened he felt, just a trace of residual spiritual power aura made his cultivation show a hint of improvement.

Wu Wei's eyes suddenly lit up, although the Nian Array here had lost its effect, the power of its rules was still there, and he couldn't help but suddenly say, "I'm so stupid... That senior master left in a hurry, didn't this just want me to comprehend the method of chanting the array here?"

He didn't have time to make too much remorse, and now that time was pressing, he did not hesitate to sit down cross-legged, took out the yellow booklet from his waist, and began to study it carefully.

Judging from the description in the booklet, the name of this mental array in front of you is 'Ice Domain', and it is the most basic defensive formation.

This 'Ice Domain' Nian Array is not complicated, it is just arranged by the old man casually, but even if it is the most basic formation, Wu Wei studied it for more than half a month before he understood its construction rules.

"It's really not simple..."Wu Wei deduced the power of his rules while studying, and actually found that this method of reciting the array seemed to be a kind of cultivation method that was helpful for cultivation, and the gratitude in his heart for the silver-haired old man couldn't help but increase a little.

The arrangement of the 'method of chanting the array' is ever-changing, based on the caster, and the 'runes' are condensed through the mental formula, the so-called runes can be all things in heaven and earth, and then the 'runes' are arranged on the designated spiritual light array according to the mental formula, so as to achieve a rune circuit.

Although the arrangement of the method of chanting the array does not have too high requirements for Dao cultivation, it is a great test of the caster's patience.

The strength of the array arranged is also directly related to the caster, just like this 'Ice Domain' formation arranged by the silver-haired old man, although it is only a simple defensive formation, but with Wu Wu's current cultivation, it can't shake it in the slightest.

When the silver-haired old man came here, he saw that the extremely cold air in this area was strong, and on a whim, he used the Dao magic power to manipulate the rules of heaven and earth to change the climate of this place, and then raised his hand to scatter this defensive formation.

As far as Wu Wei is concerned, he doesn't have the strength to manipulate the rules of heaven and earth at will, so he has to follow the steps in the booklet, first condensing the ice crystal runes step by step, and there are countless empty slots of runes on the formation, and filling them one by one has to condense at least 10,000 ice crystal runes, which is an extremely large project that requires great patience.

Wu Wei did not hesitate at all, between the pinching of his hands, the spiritual power in his body was running rapidly, and the ice and snow that had not yet melted around him suddenly flew all over the sky under the control of the spiritual power, rising from the ground one by one.

Ice and snow are materialized substances, far more difficult than controlling the aura of heaven and earth, and finally refining and condensing into a piece of ice crystals the size of a fingernail in the palm of his hand.

It took another half a month just to collect ice crystals by operating spiritual power, and of course, in the process of condensing the energy of heaven and earth by operating spiritual power countless times, Wu Wei's control of spiritual power was already skillful to a terrifying level.

After the last piece of ice crystal rune was collected, Wu Wei breathed a sigh of relief, only feeling haggard, but he had to sigh in his heart: "It turns out that the old-timers gave me this basic recitation array method booklet is very meaningful..."

After resting for a while, he once again conjured the magic in his hands according to the detailed description in the booklet, forming a faint light mask around his body that was only visible to him.

The range covered by this light mask is only five zhang in size, which is already the limit distance that the spiritual power in his body can control, but just this five zhang range of formations, the rune slots on it have reached an extremely terrifying number, densely arranged and combined in an extremely strange order.

"Success or failure in one fell swoop..."

Wu Wei was not intimidated by the tedious steps in front of him, he groaned slightly, took a deep breath, and then triggered the ice crystal runes suspended in the air to be printed on the light mask one by one, and the invisible light mask suddenly lit up, as if it had been filled with a trace of energy.

If the condensation and refining of ice crystal runes is a test of human endurance, then the arrangement of runes is a test of people's spiritual concentration.

After another half a month, Wu Wei finally arranged all the ice crystal runes in order, and the energy fluctuations emitted by the invisible light mask suddenly became several times stronger.

"It's just one last step away. Wu Wei devoted himself to the study of the Nian Array without sleeping, and his spiritual power gradually became stronger.

"Enlightenment"

With a loud shout, based on Wu Wei, who was sitting cross-legged, a mental power formation that exuded majestic energy fluctuations suddenly rose within the range of five zhang, this formation looked like nothingness, and its existence could only be felt after the physical body touched it.