We need to spend time, quality time, in God's presence in intimacy, hearing His voice and obeying Him. Many things happen in His presence: more than anywhere else.
If our vision is of God, it will burn in us like a fire, and through prayer it will get stronger over time. Our vision motivates us into action!
If we don't have a vision, we must ask God for one. Then God will birth one within us. And we will know it's from God, and it will bring excitement. Then we must add action to our vision – or it won't go anywhere!
Romans 10:15: But how are they to preach unless they are sent? Just as it is written: "How beautiful are the feet of those who bring good news of good things!"