What has everything inside it? Everything you can imagine. Even God, wind, world, sky, heaven, earth and everything that comes to your mind?

Why this works

This riddle plays on the concept of the alphabet as a container for all words and ideas. When you think about it, every term you can imagine—like "God," "wind," "world," and "heaven"—is made up of letters from the alphabet. Essentially, the alphabet holds the potential for all thoughts and concepts, making it a clever answer to the idea of having "everything inside it."