Early in 2013, I switched gyms and worked with a trainer who helped me put together a program that led to a huge increase in my fitness level throughout the year. I also spent some time reading exercise and strength training books and articles. I found several principles about working out and exercising that made it easier for me to understand why I needed do to the things I needed to do. Some of the principles are: “You must become comfortable with being uncomfortable.” “You must do what you do not always enjoy doing.” “You must get enough rest; relax, and reward yourself for accomplishing a major goal.” “What you eat and drink---food---will determine what you are capable of doing.” More and more, these principles seemed to also have a spiritual application. 1 Corinthians 9:24, etc., says it this way: “Do you not know that in a race all the runners run, but only one gets the prize? Run in such a way as to get the prize. Everyone who competes in t...