Heaven and Earth Laws were, in truth, the rules governing the operation of all things within a world.
Before one's cultivation broke through to the Creation Realm Divine Being stage, no matter which world one entered, one could only accept and abide by that world's Heaven and Earth Laws.
Other than that world's creator, no one could alter them.
Moreover, even a Creation Realm Divine Being could not easily change the Heaven and Earth Laws of an already established world.
At most, they could only be more or less constrained by that world's Heaven and Earth Laws.
After a martial warrior's cultivation broke through to the Dao Realm, one of the main goals of cultivation was to comprehend as many of the Heaven and Earth Laws of their primary world as possible, so that they could draw more upon the power of those laws in battle.
It was merely using them.
Yet there was one kind of treasure that could, to a certain extent, control a world's Heaven and Earth Laws.
This kind of treasure went by many names—World Talismans, World Artifacts, World Controlling Spirit Treasures, Heaven and Earth Mystic Passes, and more—but their origins and functions were the same.
To make it easier for themselves or their descendants to control the world they had created, most world creators would forge, while creating that world, a treasure capable of controlling a portion of its Heaven and Earth Laws.
Such treasures were normally incomparably precious. Obtaining one was equivalent to obtaining control of an entire world.
Most importantly, it meant home-field advantage!
With a World Controlling Spirit Treasure, if one fought within that world, the advantage would be beyond imagination—especially when fighting opponents below the Creation Realm Divine Being stage.
A World Controlling Spirit Treasure could exert an effect that was