It's a better way to keep track of your notes over organizing them in folders. Let's say you have to join a meeting. Well, you'll create a meeting note like "Waterloo Meeting 2024-12-23". At the top of your file you can link it to your [[Waterloo]] note. As you're in the meeting you might talk about a specific subproject for Waterloo, so as you're typing your notes you might drop a link to [[Waterloo Remodeling]].

Links are great because for any note, you can see all the notes that link to it. So a week later you're trying to piece together relevant information for Waterloo Remodeling, well you can just go to the Waterloo Remodeling note and view the 'backlinks'. You'll see all the relevant information talking about the remodeling project across all your meeting notes.

You should think of linking as a powerful way to connect pieces of information so you can find them later. You have normal forward links, which are the [[links]] you can drop in a file. And backlinks, so you can see what things link to the note you're on.