How Important Is Leader Vision?

It's an often undiscussed reality that people are more inspired by their vision than the vision issued to them by their leaders, in spite of the fact that many leaders believe their vision has special powers. This said, it is always important leaders sustain vibrant vision about the possible future and communicate it. It's not to colonize or preempt other people's own vision but to inspire and evoke their vision. So their communication of their vision is, "So what's yours?"