. . . I say to you, he who believes in Me, greater works than these he will do, because I go to My Father —John 14:12

Prayer does not equip us for greater works — prayer is the greater work. Yet we think of prayer as some common sense exercise of our higher powers that simply prepares us for God’s work.
In the teachings of Jesus Christ, prayer is the working of the miracle of redemption (Buying back) in me, which produces the miracle of redemption in others, through the power of God. The way fruit remains firm is through prayer.

Prayer is the battle, and it makes no difference where you are. However God may engineer your circumstances, your duty is to pray.

Yet we refuse to pray unless it thrills or excites us, which is the most intense form of spiritual selfishness. We must learn to work according to God’s direction, and He says to pray.

“Pray the Lord of the harvest to send out laborers into His harvest” ( Matthew 9:38 )