The sin of Adam at the tree of knowledge did not affect the state of Katnut (smallness) that was already corrected before the shattering. Therefore, the upper part of the worlds of BYA, created at the birth of Adam, did not break. It turns out that the upper system around us is more corrected than us who are inside of it. Nature is more corrected than the human.
However, a person has a more elevated task: to become independent, to become a person similar to the Creator. Nature does not have such lofty goals since it consists of desires of bestowal; it is corrected.
This is what we see in our world. If it were not for people spoiling nature, it would act according to its perfect laws, which do not have any freedom of choice. This is what eventually helps us reach correction in both our world and the spiritual world.
The inanimate, vegetative, and animate nature are corrected, and only the inner system called “man” is what corrupts them. The inner part is shattered and it projects all its corruption on the external system, on inanimate matter, plants, and animals. When we correct ourselves, then obviously the whole world will be corrected.1
All inanimate, vegetative, and animate nature are corrected. If there were no human, the wolf would live peacefully alongside the lamb. Yet, since the human corrupted everything with his shattering, the wolf devours the lamb. It is all because of man. Without him, there are only bestowing desires in nature and the wolf can walk next to the lamb as if in the Garden of Eden, and a little child can lead them (that is, a man in the state of smallness).
After the final correction, even a grown-up man who attained the Creator will only be in bestowal in relation to others, and therefore, he will be called “a little child.”2
From the 2nd part of the Daily Kabbalah Lesson 1/23/19, Talmud Eser Sefirot, Vol. 6, Part 16, Table of Answers for the Meaning of the Words, Item 300
1 Minute 30:10
2 Minute 37:05