Each day you must make decisions in how to use your energy. A warrior does not expend energy unnecessarily, but a warrior is always ready to spring into action and always has enough energy to do so.
Problems that arise in life create the ebb and flow of energy inside and out and so, like a trained warrior, remain aware that there are times to fight and times to acquiesce, times to relax and times to be on alert, times to be present and times to disappear.
Look to what is happening outside of you to guide your decisions, actions, and personal energy usage. Like a warrior know what you are capable of and what is best left to others. Each warrior has a specialty and keeps that specialty honed. What is yours and how are you using it?