What is this communication for?
What do you hope to achieve?
How do you want the person you’re talking to to feel as a result of what you say? What do you want them to do, or think?
What result are you trying to create?
This is intention. When you say what you say, what do you put into motion?
Often, however, we answer “what it’s for” with “what it’s about.” About gives us information, data, plot. It doesn’t tell us why.
An about without a for doesn’t get you very far.