Many Christians misinterpret Jesus' promise of the "abundant life" to mean perfect health, a comfortable lifestyle, constant happiness, full realization of your dreams, and instant relief from problems through faith and prayer. In a word, they expect the Christian life to be easy. They expect heaven on earth. This self-absorbed perspective treats God as a genie who simply exists to serve you in your selfish pursuit of personal fulfillment. But God is not your servant, and if you fall for the idea that life is supposed to be easy, either you will become severely disillusioned or you will live in denial of reality.
From Rick Warren's A Purpose Driven Life. John Hawkins of Right Wing News has a collection of his favorite quotes from the book.