Ru Gu had no idea why Lu Yin would ask such a question. How could Mount Yu Shen possibly be Parallel Space-Time?
"What's the deal with the Spiritualized Heaven Skill?" Lu Yin asked.
Ru Gu replied, "It's to prevent cultivators from the Spiritualized Universe from detecting the aura of the Nine Heavens Universe. If they all cultivate the Spiritualized Heaven Skill, cultivators from the Spiritualized Universe won't be able to tell where someone is from by their aura."
"To reach the Nine Heavens Universe, you have to go through Mount Yu Shen?"
"That's right. But going through Mount Yu Shen doesn't guarantee you can reach the Nine Heavens Universe." Ru Gu thought for a moment, then added, "In fact, you could say it's impossible. It's not a matter of finding the right route. Even if you see the Nine Heavens Universe, you still can't enter."
"What do you mean?" Lu Yin asked.
Ru Gu grew solemn. "The Nine Heavens Universe has a Heavenly Gate. No one can force their way through it. Even someone with our strength couldn't break through, because the Heavenly Gate comes from the Supreme God."
Lu Yin's expression shifted. "The Supreme God's power?"
Ru Gu nodded gravely. "Anyone who tries to force their way through the Heavenly Gate dies."
Lu Yin frowned. "Is that really necessary? Just to keep cultivators from the Spiritualized Universe from entering the Nine Heavens Universe?"
"I don't know why. But throughout history, only one person has ever forced their way through the Heavenly Gate and entered: the Supreme Extreme of the Spiritualized Universe. No one else has ever succeeded," Ru Gu said.
Master Cao's image came to Lu Yin's mind. Only someone in the Eternal Life Realm could break through the Heavenly Gate. His own strength was nowhere near enough.
"But