I have read many answers to this seemingly age-old question. But I have my own understanding and wanted to know if my understanding is correct or not.

Imagine I have a HTML, JS, CSS files I am working on. And in my next big release, my website will have a shiny new Title (maybe just a h1 tag) with a beautiful blue font (css styling). But no JS code is needed for this big release.

I make the change to the HTML file, and the CSS file of course, then I "git add" them both to the staging area. Since they are both in the staging area, I can now commit both these files with the changes and give them both the same label in my commit message that this commit "adds a beautiful blue title".

So perhaps without the staging area, I would not be able to package both files together under the same commit message but since I staged them together, its easier to understand that both of those files with the specific changes were what was done for the new shiny title on the website.

Is my thinking flawed? Any thoughts would be appreciated.