I believe vision is ever shifting, ever changing. Vision is rooted in purpose.
Vision evolves as one progresses forward on the journey of life.
A vision that works is like a big picture. At the everyday level, we can concentrate on a specific piece of the canvas, being mindful of how the little piece we're working on relates to the whole. For a vision to work, it has to connect directly to your personal mission. Vision work is continuous. You can start with a first, intense session to sketch out the whole canvas.