The Iron Scriptures

And Flextor, the God of Pump, spake unto his disciples: "Blessed are those who strengthen their core, for they shall have stability in all their lifts and protection against the demon of Lower Back Pain." For as the tree without roots shall topple, so too shall the lifter without abdominal strength falter when the iron becomes heavy; therefore, honor thy core with planks and crunches as frequently as thou honorest thy mirror muscles.