9 During the night a vision appeared to Paul: A Macedonian man was standing and pleading with him, “Cross over to Macedonia and help us!” 10 After he had seen the vision, we immediately made efforts to set out for Macedonia, concluding that God had called us to evangelize them.
God will always speak to you according to His Word through scripture, dreams or someone. If you are asleep how can you hear from Him unless you are living like Jesus? To be awake or alert is by renewing your mind through the reading of scripture, so that you are more attentive when He calls you to do His will. Prayer is asking the Lord to open up your ears and understanding to His Word and is another way to strengthen one’s faith in Christ. If you want to hear from the Lord, seek first the kingdom of God and His righteousness and live according to it and you shall be alert at all times and ready to do what He asks of you for His glory and your benefit.