"But conversion and spiritual growth are not only through the mind. There is a correlation between being willing to accept and practice God's revealed truth and being able to understand it. People who are unwilling to change either their thinking or habits to accord with what the Bible says, cannot advance spiritually. This is true both in becoming a Christian and in growing as a Christian...Understanding is limited by the degree of willingness to be humble."

-Being Human: The Nature of Spiritual Experience, by Ranald Macaulay & Jerram Barrs