Some thoughts on writing. Having an idea or want to create something? Writing it down is the first step to refine it and testing it.
"It's almost like you are discussing your idea (or aim) with the document."
Putting it down in words will show you the state of you idea. Anyone who thinks clearly can write clearly.
Problems formulating or being precise => The idea isn't formed well enough in your head yet.
Keep revising your writing => forming idea in your head.
Found a great PDF with slides that shows a lot of aspects in writing. Love the example of writing more concise texts on slide 36-44. Check it out.
Once again "Anyone who thinks clearly can write clearly".