Interesting. Obviously borrowing from Buddhism. Of course, Christian prayer and meditation upon Scripture can produce similar "mindfulness", self-control, and spiritual healing promoting what the Apostle Paul referred to as the "fruits of the Spirit" - "Love, joy, peace, longsuffering, kindness, goodness, faithfulness, gentleness, self-control".  The author is certainly at liberty to emphasize their Buddhist based strategy. Just saying that other faiths  include similar practices and strategies.