While flying within, Su Han lost all sense of time. He didn't know how long he had been flying through the boundary between the two great universes before finally reaching the edge of the Immortal-Demon Great Universe.
The boundary between the Immortal-Demon Great Universe and the Desolate Darkness Great Universe was encased by a peculiar substance, the crystal wall!
If a universe were an egg, the crystal wall would be its shell.
The crystal wall of the Immortal-Demon Great Universe was a bluish-black substance. It was not completely sealed but transparent, a transparency akin to that of an energy entity.
Su Han approached the crystal wall of the Immortal-Demon Great Universe and looked inside.
A vast amount of energy obstructed his vision.
Su Han activated his Tenfold Divine Eyes to look again. The Tenfold Divine Eyes were insights he had gained from the Tenfold Divine Light divine ability.
This time, Su Han could clearly see some of the sights within.
He saw that within the crystal wall of the Immortal-Demon Great Universe, there existed a layer of space. This layer of space was similar to the black jade space Su Han had entered before. Apart from the color, the energy and Dao resonance within felt the same. Because Su Han had been inside the black jade, he could sense the situation within from outside this crystal wall.
Su Han was greatly surprised. Why were the black jade and the crystal wall of the Immortal-Demon Great Universe the same? Could the black jade be a piece of the crystal wall of the Immortal-Demon Great Universe?
Su Han could not discern the width or thickness of the crystal wall of the Immortal-Demon Great Universe.
Su Han tried to place his hand on the crystal wall of the Immortal-Demon Great Universe. The crystal wall was extremely hard. Even with his spiritual power, he could not push it open.
In the space outside this crystal wall, all of Su Han's spatial jumping techniques failed. Furthermore, there was no replenishment of spiritual energy here; he could only use the spiritual energy within his body.
Su Han's current state was dire. All his senses were impaired, and his spiritual energy could not be restored. In this space outside the universe, unknown energies were constantly affecting Su Han.
Su Han desperately wanted to return to the Immortal-Demon Great Universe as soon as possible, or he might die here.
Su Han began to try various methods to enter the Immortal-Demon Great Universe, but no matter what he tried, the crystal wall of this universe could not be breached.
Su Han could only think in his heart, "Am I going to run out of spiritual energy here and die after countless years?"
Su Han looked again at the crystal wall of the Desolate Darkness Universe in the distance.
Things at the cosmic level were infinitely vast. From the crystal wall of the Immortal-Demon Great Universe, Su Han looked towards the Desolate Darkness Universe, seeing what resembled a colossal wall. This vertical wall was an unknown number of trillions of kilometers away.
No matter which direction Su Han looked, up, down, left, or right, the crystal wall of the Desolate Darkness Great Universe appeared flat, and the crystal wall of the Immortal-Demon Great Universe was also a plane.
Su Han knew that these planes were merely what his eyes perceived. The crystal walls of these universes were actually shaped differently, most likely as some form of an elliptical sphere. However, Su Han could only see a small portion of this crystal wall and not its entirety, so he couldn't ascertain its true shape.
It was only after activating his Tenfold Divine Eyes that Su Han could see the crystal wall of the distant Desolate Darkness Universe. Without them, the surroundings were a vast expanse of darkness.
In this space, there was a pulling force that was siphoning the energy from Su Han's body. This pull was not directed at him specifically; rather, the entire surrounding space lacked energy, causing energy to flow from a higher potential to a lower potential, just like water flowing downhill.
Su Han had cultivated some energies similar to the crystal wall energy from that black jade. By wrapping himself in these cultivated energies, this pulling force could no longer draw out his internal energy. This made Su Han realize that the crystal walls of these universes were there to prevent internal energy from being pulled out.
Currently, outside the Immortal-Demon Great Universe, Su Han could not penetrate the crystal wall to enter, nor could he break it. Moreover, he had to use his mana to create a crystal-wall-like energy barrier around his body. If this continued, Su Han's energy would eventually be depleted, leading to his death from exhaustion.
Su Han's mind raced, trying to figure out how to break free from this deadlock.
Su Han thought, "I cannot enter the Immortal-Demon Great Universe now. Staying here is a dead end. This space is truly terrible; even my teleportation portal cannot be deployed here."
Su Han had also tried many times to open a teleportation portal here, but it was completely impossible.
Su Han continued to open the teleportation portal system, and its information panel displayed before him.
Su Han secretly thought, "Teleportation portal system, transfer the Immortal-Demon Great Universe's teleportation portal to this location!"
After Su Han finished thinking this, he waited for a while but received no response from the Immortal Teleportation Portal System.
Su Han continued to think, "Alas! As expected, this teleportation portal system still hasn't appeared. It seems I can only think of other methods."
With no other option, Su Han simply entered a state of cultivation.
In this peculiar space, it was useless to cultivate any technique. Therefore, Su Han decided to use a method of comprehension instead.
This was akin to a state of enlightenment. Su Han had sensed the power of the crystal wall within that black jade. Now, unable to replenish his energy in his body through cultivation, he could only rely on comprehension. In the black jade, it was by comprehending those energies that he could cultivate.
When Su Han entered the state of enlightenment, the surrounding energy would normally appear within his spiritual consciousness. However, now, even in this state of comprehension, Su Han could not sense any surrounding energy or Dao resonance. The surroundings were in a state of "nothingness." From this state of "nothingness," Su Han could perceive nothing. Yet, at this moment, Su Han could only continue to undergo this process of comprehension. He had no other recourse.
Then, within the state of "nothingness," Su Han's figure began to move. However, Su Han, immersed in comprehension, was completely unaware that he was moving. In the state of "nothingness," he could not sense whether he was moving, nor could he perceive any acceleration in his movement.
Unbeknownst to himself, Su Han soon moved far from the crystal wall of the Immortal-Demon Great Universe. He remained in a state of constant comprehension, entirely oblivious to his surroundings.