The Azure Mystic Immortal Realms today...actually is not the Ancient Azure Mystic Immortal Realms, they are completely different. Ancient Azure Mystic doesn't refer to the change in era, it wasn't the current Azure Mystic in ancient times. In fact, although the current Azure Mystic was extremely vast, it was very possible that it was only a remote corner of the Ancient Azure Mystic Immortal Realms.
The ancient records of the Askheart Temple actually contained a startling secret, recording ancient history of the Azure Mystic Immortal Realms. It was recorded that the Askheart Temple had existed since the time of Ancient Azure Mystic but because of that world-ending battle, the multitude of living things perished and the entire immortal realm were razed to flat ground. If things truly happened based on what the records said, the words 'world-ending' was truly not an exaggeration at all. This was simply too terrifying. Out of the thirty-three heavens in this universe, one of them was actually completely destroyed. What level of a battle was that at?
After that, some of those who survived the war fled the battlefield. After they awoke from their delirious state, the vast majority of living things had already died. Those survivors could actually no longer find the past Azure Mystic Immortal Realms, it seemed that they were in a completely new world. An ancestor-level character of the Askheart Temple used a single sentence to summarize this change perfectly. "After awakening from a dream, the heavens have changed.
The current Azure Mystic Immortal Realms most probably was something developed by the survivors of that devastating world-ending battle in ancient times. So much time has passed that it was basically no longer possible to verify things. The history of the Askheart Temple was so long that it caused one's heart to tremble. It had accompanied Azure Mystic from the past up until now.
Countless years ago, the Supreme Ancient Immortal Realms started a war against Azure Mystic. The various heavenly deities there all descended here, launching attacks, the fires of war sweeping across Azure Mystic as they sought to steal away all divine depositories here, wanting Azure Mystic to submit to them, completely accepting the rule of those from the Heavenly Deity Race. This was why the world-ending battle occured. The skies were torn asunder as Azure Mystic was razed to the flat ground. If it wasn't for the heaven-defying methods of the Heaven Lord. then not even the current Azure Mystic would exist.
Azure Mystic actually resisted them and wasn't willing to submit. When one reaches a supremely lofty position, how would they stand for the disobedience of others? They naturally wish to dominate everything and become the king and seek to become even stronger by seizing the divine depositories. To those existences that already stand at the peak, they only wanted to transcend everything, no one was allowed to threaten their authority. Back then, the Imperishable Heaven Lord was given the title of Heaven Lord, he stood at the supreme peak of Ancient Azure Mystic. However, he had never developed a sect or clan belonging to himself and he also didn't govern this world. The title given to him was a symbol of faith and conviction of Azure Mystic. All sorts of powers appeared then, developing smoothly. That was an incomparably glorious era or we wouldn't have been able to resist the invasion of the Supreme Ancient Immortal Realms. How could people of an era like that be willing to submit to others? Azure Mystic didn't want to be a slave. Things are the same since ancient times and things would remain the same in the future. The one who sealed Azure Mystic Immortal Realms and forbid the others to enter was in reality the Old Freak .