We agreed to be a tour guide, how did it become the law of nature?

Aura, Sunday tentatively calls the high-energy substance he created by this name.

Although the release of spiritual energy has increased the upper limit of humans, they are still humans after all. Their body size is limited, and the amount of spiritual energy they can carry in their bodies is limited.

Although other creatures on the planet had no way to practice cultivation, they were able to absorb the spiritual energy in the air. Over time, they became more vigorous and almost caused humanity to become extinct. In the end, humans hid underground and barely survived.

"Fortunately, humans still have some fire left." Sunday sighed and immediately began remedial measures.

He took back the spiritual energy that he had released onto the planet and changed the environment, making the clouds in the sky thicker and making it almost impossible for sunlight to shine through.

The temperature on the planet gradually dropped and finally turned into a snowball.

The ecology collapsed and a large number of species on the earth began to become extinct, including many powerful beasts that used to dominate the land.

They used to be at the top of the food chain, but now they are completely extinct just because of a thought on Sunday.

Because humans have long adapted to the underground environment, even if the outside temperature drops, the underground environment will not change much. The only thing affected is the lack of food.

This time he did not rest on Sunday, but continued to watch the development of the world in front of him. When the time was right, he changed the environment once again. The long-lost sunshine fell on the earth again, and the snow began to melt.

The new environment quickly gave rise to a new ecology, and vegetation grew lush again. However, it would probably take quite some time for humans to return to live on the ground.

This time Sunday didn't rush, he decided to be patient.

No one knew how much time had passed before a portion of humans finally returned to the ground, quickly adapted to the local conditions, and gradually grew stronger.

Sunday no longer dares to change the environment at will, but it is still necessary to guide mankind from primitive society to civilized society.

Soon, a campfire appeared, followed by a variety of tools.

When the first bonfire was lit outside the cave, Sunday could clearly feel the hope contained in the jumping flames.

This is the embodiment of his divine power, but it is no longer as radical as last time. He uses a more gentle way to guide the development of human beings on this planet.

Several primitive men wrapped in animal skins sat around a fire, cutting roasted pieces of meat with sharp stones.

"Humanity really needs gods. The order created by divine power is simple and intuitive, and will always keep them on the right path." Sunday felt very satisfied with his current achievements.

If he hadn't taken action, it would have taken who knows how many years it would have taken for humans on this planet to reach their current level.

"We should give them a more stable fire." Sunday pondered as he sank his consciousness deep into the earth, guiding a weak vein of earth energy to flow toward several specific mineral veins.

A few days later, the oldest craftsman in the tribe accidentally discovered a piece of ore with a strange metallic luster in the firelight while hammering flint.

That was not naturally formed meteorite iron, but copper ore catalyzed by Sunday's remaining divine power. It was soft in texture but tougher than stone.

The human tribe soon ushered in new developments. Sunday watched them use animal bone chisels to hammer the copper ore into thin slices, and then repeatedly forged them in the campfire, and finally sharpened the first copper blade.

Although the edge is bumpy, it is enough to easily split the hardest animal bones.

This discovery was like stepping on the accelerator. Soon all the primitive tribes were making bronze tools, and their hunting efficiency increased exponentially.

This time, Sunday did not directly guide these primitive people, and they didn't even know that there were "gods" on this planet, but Sunday still felt that his divine power was increasing.

'In addition to faith, is it possible that allowing these humans to grow and develop is also a way to gain divine power?' Sunday thought silently, it is very likely what he thought, just like some development games.