P - Prepare. We need to make ourselves ready for prayer, bringing ourselves to a place where we can concentrate on God and hear His voice. Christ Himself went away to a quiet place to pray:
R - Recognize God's authority, and remember that He can do anything to accomplish His will. God can and will do anything - no matter what it takes - for His children. To defeat the Amorites, He even stopped the sun from setting at just the word of Joshua:
A - Acknowledge our weakness. As we come before the Lord, we know He is righteous and we are sinners. "Have mercy on me, O God, according to your unfailing love; according to your great compassion blot out my transgressions. Wash away all my iniquity and cleanse me from my sin."Psalm 51:1-2 (NIV)
Y - Yield to the will of God. Without yielding ourselves to God, He cannot do anything in our lives. "Not everyone who says to me, 'Lord, Lord,' will enter the kingdom of heaven, but only he who does the will of my Father who is in heaven." Matthew 7:21 (NIV)
E - Expect a miracle. We cannot expect a miracle unless we yield our wills to God. The man with the withered right hand trusted Christ. When Christ told him to do so, he brought out the hand that was withered and stretched it out. "And when He had looked around at them all, He said to the man, "Stretch out your hand." And he did so, and his hand was restored as whole as the other." Luke 6:10 (NKJV)
R - Rejoice in Him, irrespective of the result. Paul was a great man of faith. He prayed to the Lord constantly, and in his own affliction, he prayed for God to remove his "thorn of the flesh." "Three times I pleaded with the Lord to take it away from me. But he said to me, "My grace is sufficient for you, for my power is made perfect in weakness." Therefore I will boast all the more gladly about my weaknesses, so that Christ's power may rest on me." 2 Corinthians 12:8-9 (NIV)
"A man of knowledge uses words with restraint, and a man of understanding is even-tempered. Even a fool is thought wise if he keeps silent, and discerning if he holds his tongue." Proverbs 17:27-28