Book excerpt: Here is a masterly study of the inner life by a heart thirsting after God, eager to grasp at least the outskirts of His ways, the abyss of His love for sinners, and the height of His unapproachable majesty - and it was written by a busy pastor in Chicago! Here is a book for every pastor, missionary, and devout Christian. It deals with the deep things of God and the riches of His grace. Above all, it has the keynote of sincerity and humility.