Why is prayer so powerful?
As everyone knows, Bible study is indispensable. You have to know God’s word before you can wield it (See Ephesians 6:17). But Satan has been around for much longer than the Bible has. He knows the Bible better than you do, and he is much smarter than you. Left alone with your knowledge of the Bible – strong as it may be, Satan will run circles around you — laughing. You don’t stand a chance.
But prayer to God is like having radio contact in combat with a general who has a spy satellite. The General (God) can see the big picture. He can see where forces are advancing and see weak points in the adversary’s positions. God is much smarter than Satan (God runs circles around him. The Old Testament prophets had told the world including Satan that Jesus would be crucified — hundreds of years in advance, yet Satan could not figure out what was really going on, and went ahead and crucified Jesus anyhow… sealing his fate.)
Better than a general, God spans time and space. He knows what is going to happen before it happens and He is much smarter than the devil. (Imagine how smart God is to have designed the eye that connects to the brain, which can interpret what it is seeing… and you will get a small glimpse of how smart God is. It is overwhelming.)
If you have direct “radio” contact with God, you can cause some serious damage to the enemy. The demons know that so they will try a million tactics to keep you from praying. They can make you feel tired, too busy, any number of things. But pay no attention pray anyhow. No matter what worldly thing you have before you. No matter how urgent, if you want to make a difference for the Kingdom of God — and in your own life, and the lives of your friends family, and the church as a whole, your little tasks suddenly pale in comparison. Nothing is more important than your prayer life.
Remember to strengthen the things that remain (See Revelation 3:2). The things of this world will be burned with fervent heat. But the things that will not burn you will be rewarded for all eternity — other people. If you are instrumental in saving other people, they will not burn, and you will get a reward (See 1 Corinthians 3:13-14). All else is vanity.