On a turquoise land, an overwhelming array of illusory ghosts was rushing towards Gu Ju.

Faced with the attack that was about to come in the next moment, he fell into a strange state at this time, that is, thinking about the reality of this world.

At this moment, he wanted to ask himself again whether this seemingly strange world was real, whether it was an illusion of nothingness, or whether everything was something that really existed.

In addition, even he couldn't help but think deeper, if you don't consider this world of green and darkness for the time being, then at the beginning, on the side of the official road on the outskirts of the capital of Great Wei, he rode on a horse and looked at the cat-faced woman through a curtain, is it real or not, and what are the underlying basic laws it follows?

So now the only answer that Gu Juan can give is: it is impossible to know.

He really didn't know, and he couldn't figure out what was real and what was illusory.

Even though he benefited from systematic education in the last time and space, and the influence of the Internet information explosion later, he was able to understand both materialism and idealism a little, but he did not have a slightly in-depth and accurate answer to the questions that now lie in his heart.

After all, after a series of **, he knows that both materialism and idealism are tools used by people to understand the world, but they cannot answer the question of whether the world is real.

Although he was educated in a materialist worldview that the material world existed objectively, he did not dare to be absolutely certain of this because of this, and this is true.

The reason why Gu Juan thought like this was because of the trap he had just experienced not long ago, especially when he had just "woken up" from the bed in his dormitory, the beds, tables and chairs he touched and saw gave him an extremely real feeling, so if he didn't face the trouble of a mental breakdown and kept "living" there, could it be said that the thing that was most likely built with his own spirit was real?

He had to understand that everything he could feel, whether materialistic or idealistic, was a reflection of his own senses and brains.

The simplest examples, such as the endless turquoise colors here and the large gray that protrudes from the mad pig in the distance, are all occupied by the colors of turquoise and gray-black in his eyes, but he knows that there is no such thing as color at all, only electromagnetic waves of different wavelengths and frequencies, and color is an illusion created by the brain when it perceives and interprets the difference in the frequency of electromagnetic waves.

Take a deeper look at it, even electromagnetic waves, wavelengths, and frequencies are all concepts defined by the brain, so everything is inseparable from the definition and transformation of the brain.

Do you want to jump directly into the thinking trap of the brain in the jar?

Suddenly, I didn't know how much I thought, Gu Juan took a deep breath, even if he was dizzy and dizzy, he couldn't make a slightly more reliable explanation of the world in front of him, so he simply threw some of his unrealistic thoughts behind him and looked at the gray ghost that was already close at hand.

When the first gray-black illusory ghosts finally pounced on him, he raised his hands with a blank face.

"Immeasurable light, immeasurable longevity, immeasurable heavenly Venerable Black Mountain Jun. ”

"I said, Let there be light......

"I say, 'Thou shalt fear the light.' ”

In an instant, with Gu Juan as the center, the entire heaven and earth were scarlet.

The endless illusory ghosts disappeared without a trace in an instant under the light of the omnipresent red flame, but Gu Juan didn't have much of a happy expression, frowned slightly and took a few steps forward, but suddenly crossed the entire plain and stood in front of the black shadow with a cat's face and human body.

Behind him, scarlet flames rose into the sky, blazing, enveloping and engulfing all the turquoise colors.

"I say......" He didn't continue, but suddenly pulled out a double-edged axe from behind his back, and slammed into the short sword that silently stabbed from the cat-faced woman's hand.

"The foundation of his own strength is constantly being devoured by him, and I have really fallen to the bottom of the other, and if I continue like this, I will inevitably be defeated, but there is still a chance to turn all this around, because I have a foreign object divine weapon that can really be used in this secret realm!"

The cat had just shown a sneer on its face, but it suddenly froze on the spot after a loud bang.

Its eyes were horrified, staring at the double-edged axe in Gu Ju's hand, and muttered in disbelief, "Impossible, this is impossible, absolutely impossible......

It screamed, and struck its sword again like lightning, fighting with Gu Ju, who was wielding a big axe.

The fierce exchange between them lasted at least a cup of tea, and when the last axe and sword slammed and each stepped back some distance, the scene strangely returned to calm.

The cat-faced old lady's body couldn't stop trembling, and it didn't even become as solid as before, and it looked a little illusory.

Gu Juan didn't take this opportunity to fight back, because he was also extremely sad, feeling that his head was two big, and the mental consumption and deficit had reached an unbearable level.

I don't know how long it took, the cat-faced old lady raised her head, and her gloomy gaze fell on the double-edged axe that shimmered with cold light, "Why can your axe block the attack of my sword? No, it shouldn't exist in the secret realm at all, why is that!?"

Gu Juan made a natural expression, sneered and said, "Of course it can block the attack of your broken sword, and you are mistaken, this axe originally existed in this strange world, and in terms of antiquity, it is far better than the short sword in your hand, to be precise, the relationship between the axe I just got and your short sword should be the relationship between father and son." ”

"It can't be. ”

"There's nothing impossible, the secret realm here wasn't made by you, and you haven't really explored and studied it in depth, just scratched the surface, and didn't grasp the rules of its operation, so you don't know why it is, or even know it. ”

Gu Juan slowly turned the axe in his hand, showing it to the cat-faced black shadow on the opposite side from all angles, and while thinking about the organizational language, he continued, "This axe is called Pangu Open Heaven Axe, also known as the Falling Red God Axe, which is taken from the meaning of Pangu God opening the world to create a secret realm, the clear one floats to the sky, and the turbid one sinks to the earth.

The cat's face whined and roared, like a fury, "You are all nonsense, nonsense!"

"To draw hasty conclusions without investigation and practice is not only ignorance, but also arrogance and stupidity. ”

Gu Juan looked at it with pity, and then turned his gaze to the short sword in his hand, "The pan god has taken out this side of the world, the true spirit is wiped out, and the god fell before he said, when the endless red flame falls, the god axe should reappear, it is called the falling red god axe, and this short sword in your hand is the one that this side of the world was conceived by itself before the god axe reappeared, and in a sense, it may be regarded as a key." ”