Bird-worm seal script

Imagine you're playing a game where you need to write a secret message that only certain people can read. Well, people in ancient China played a similar game too, and they called it "bird-worm seal script".

Now, you know how birds and worms are very different from each other, right? Birds can fly around in the sky while worms live in the ground. This is where the fun part comes in. People in ancient China drew letters and symbols that looked like birds or worms. For example, "a" might look like a bird flying while "b" might look like a worm wiggling.

This way, only people who knew how to read bird-worm seal script would be able to understand the message, while those who didn't would just see it as a bunch of strange bird-worm symbols. It was like having your own secret code that only you and your friends could read!