Cross training means training in a variety of sports in order to improve performance in each of them. Thus, improving in one sport makes you better at other sports. Closely linked is the idea of muscle confusion: When you work a muscle the same way every time, eventually you plateau. However, if you change the routine, working the same muscle but in different ways, you continually progress.
Spiritual cross training is a scripture-study program based on this principle. Instead of studying The Book of Mormon for a month (or a year), you mix it up daily–you cross train. This idea came to me when I was spending up to two hours a day studying the temple. I was very excited about it, but eventually I got burned out: I didn’t have the time or energy to study that much on a daily basis. The unfortunate result was me taking a break from scripture study for days on