increase the force of your conscience beyond the force of your body
Your conscience tells you to five for others according to the Principle. No matter how strong your body’s desire is, if you intentionally increase the force of your conscience beyond the force of your body, your body will follow it. If you cannot, you had better decrease your body’s force through fasting and asceticism. If clear water continually flows into a muddy pond, eventually the pond will become clear.