In Psalm 42: stanzas 1-8, beneath the chaos of circumstances emerges a compelling portrait of spiritual maturity.  The author is experiencing a torrential storm of life, and it appears to him that the LORD is asleep and cares not that he perishes.  The “deep” called on the writer of this psalm.  That is deep trial, deep suffering, deep tribulation and deep despair and anguish.  And when deep called, his faith though tried and tested met the challenge.