Imagine you're trying to find a specific book in a library, but when you go to the shelf, there's just an empty space with a note that says "Book Not Found." That's essentially what a 404 error is in the digital world.
Imagine your website is a library, and each page is a book. Sometimes, you need to move those books around. That's where 301 and 302 redirects come in. They're like signs that guide visitors and search engines to the right location.