Is revival a strange gift that God occasionally pours out, without warning? Not at all. God commands us to receive the Holy Spirit–so why would he withhold it? If we position ourselves in a way that's wise for God to send revival, he will. In this way, revival is practical.
First, we must realize that salvation is from sin and to righteousness, and that this is an immediate change. Sin is rebellion, and we can't obey and rebel at the same time. So, salvation requires a change from rebellion against God to submission to Jesus.
Second, revival is practical in that Christians both pray and act. And what are we praying and acting for? Primarily, to be fishers men–to fulfill the Great Commission to preach the gospel and make disciples. We pray and act for the salvation of the lost!
Are you in a position of submission and obedience to Jesus? If not, you are serving God's enemy–the devil–and you too are an enemy of God. Will you find mercy today in Jesus, and then let him make you a soul-winner?