It's like all other writing advice and writing tools, Mouse. It's greatest use may be when the writer is already aware that something isn't working or something is missing, and is looking for a way to remedy the problem.
So long as your stories develop instinctively and you and your readers are happy with the result, you don't need to understand any of this. On a deeper level, I suspect you do understand, but it's subconscious, not something you think about as you are writing.
So long as your stories develop instinctively and you and your readers are happy with the result, you don't need to understand any of this. On a deeper level, I suspect you do understand, but it's subconscious, not something you think about as you are writing.