FIT FOR ETERNAL LIFE A Christian Approach to Working Out, Eating Right, and Building the Virtues of Fitness in Your Soul by KEVIN VOST, PSY.D. Published August 13, 2014 at 194 × 300 in FIT FOR ETERNAL LIFE A Christian Approach to Working Out, Eating Right, and Building the Virtues of Fitness in Your Soul by KEVIN VOST, PSY.D.