Why Pray?
Prayer is the way to procure the outpourings of the Spirit upon our hearts. The Lord Jesus has promised the Holy Spirit, the Comforter. He is ready to come down with all His precious gifts, renewing, 
sanctifying, purifying, strengthening, cheering, encouraging, enlightening, teaching, directing, guiding into all truth. But He waits to be entreated.
And here it is that men fall short so miserably. Many fall on their knees and say a form, but there are few who pray, few who cry unto God, few who call upon the Lord, few who seek as if they wanted to find, few who knock as if they hungered and thirsted, few who wrestle, few who strive with God earnestly for an answer. Yes, few men pray. It is just one of the things assumed as a matter of course, but seldom practiced; a thing which is everybody's business, but which hardly anybody does.
Believe me, if your soul is saved, you must pray. God has no dumb children. If you are to resist the world, the flesh and the devil, you must pray; it is vain to look for strength in the hour of trial, if it has not been sought for. You must pray.
J. C. Ryle.