One characteristic of revival is that it begins with God's people in the church fervently praying for it. Then it will lead to outreach. Andrew Murray, back in 1900 wrote...
“There is need of a great revival of spiritual life, of truly fervent devotion to our Lord Jesus, of entire consecration to His service. It is only in a church in which this spirit of revival has at least begun, that there is any hope of radical change in the relation of the majority of our Christian people to mission work.”
Praying for Revival