What were we made for? To know God. What aim should we have in life? To know God. What is the eternal life that Jesus gives? To know God. What is the best thing in life? To know God. What in humans gives God most pleasure? Knowledge of Himself.
The more godly a man is, and the more graces and blessings of God are upon him, the more need he hath to pray, because Satan is busiest against him, and because he is readiest to be puffed up with a conceited holiness.