Imagine you have a secret language that you only share with your best friend. This language is so special that nobody else can understand it, even if they try really hard. That's kind of like what the 'language of the birds' is all about.
However, instead of being a secret language between two friends, the language of the birds is a special way of speaking that only certain people can understand. This way of speaking involves using symbols and hidden meanings that are difficult to decipher unless you know what to look for.
Some people believe that this language was used by mystical and magical beings in ancient times. Others think that it might have been used by alchemists and other people who were interested in the secrets of the universe.
Either way, the language of the birds is still considered to be a mysterious and powerful tool that can unlock secrets and unlock hidden knowledge. So, just like how you might have a secret language with your friends, the language of the birds is a secret language that only some people can understand.