Why is it so important to have a vision?

Where there is no vision, the people perish. We need to be able to see our nearest and dearest being baptised. We need a vision for us of being carried up into the clouds when Jesus finally comes back. We need a vision for the church: speaking to the lost, teaching them and discipling them. Everything we do, our very purpose, comes from the vision God gives us. The Bible says that we are created for God's pleasure, so let's start there...