Proverbs 14:10

"The heart knoweth its own bitterness; And a stranger doth not intermeddle with its joy."

There is here revealed a strange and terrible secret of human life. "The most sorrowful of all our experiences, and the most inward of all our joys, we must possess altogether alone. There is no such thing as a perfect fellowship among mortals. No human fellowship can give salvation, but only the fellowship with God, whose love and wisdom are capable of shining into that most secret sanctuary of human personality. Every human being is a little world to self alone, a world which only God sees and understands."[12] "Who among men knoweth the things of a man, save the spirit of the man which is within him"? (1 Corinthians 2:11).