Pomona pointed her wand at the dark clouds above the Quidditch Pitch.
After a flash of white light, raindrops soon began to fall onto the pitch. Even Fireseed Bushes still needed water to grow, but they did not need sunlight. They could burn on their own, and there was no sunlight in the caves of the Forbidden Forest either.
What she had just used was Meteolojinx. Like Tempestjinx, it could be used in weather thick with dark clouds, but Meteolojinx focused more on "falling." Rain formed through atmospheric circulation: water vapor from the land and sea rose to a certain height, then encountered cold air and turned into tiny droplets. Those droplets gathered together until their mass became too great for the air to bear, and then they fell.
Thunder, on the other hand, was formed when different kinds of electrical charges within the clouds collided, just like the "tempest" in the spell's name, which meant collision.
She looked up at the sky. There were no Dementors hidden in the clouds now, nor was there any lightning. It was simply "raining." Just as Flitwick had once told her, whenever she needed it, this cloud could do more than block prying eyes. At least now she did not have to worry about students on brooms falling from the sky again.
If one carefully observed the yin line "--" and the yang line "-," one would find that their greatest difference was that the yin line lacked a piece in the middle, making it look like a gap. If the middle piece of a yang line were "transported" into a yin line, they would reverse, creating different hexagrams. For example, the forty-third hexagram, "Breakthrough," and the forty-fourth, "Coming to Meet," were complete reversals of each other. Switch the top line and the