"We should understand the Psalter as a vital part of God's preparation for the coming of Christ. We should understand a particular psalm in its historical context and New Testament usage and ponder how that Psalm relates to Christ. Above all, we should understand the Psalter as divinely-inspired, Christ-centered songs worthy of joyful praise unto God."
(From '150 Questions about the Psalter' by Bradley Johnston; http://www.crownandcovenant.com/product_p/ds199.htm)