It can be in both if you want, why not?
You can also have horizons of focus for each area of focus.
I have defined my principles, purpose, vision and goals for each area of focus, too, not just for my "overall life". What do you believe about your health? What does your ideal health level look like and why is that important? How can you get there? What areas of focus do you have inside "health" (exercise program, meal planning, etc.)
I don't think there are any hard rules here, since everything is so interconnected. It's all just different ways of expressing your intention, which then informs how you act in the here and now.