It is like that with Holy Spirit fire, too. It can rain on your life and get your wood wet. Sometimes people hurt you. That can get your wood wet. Resentment, anger, and bitterness can extinguish holy flame.
Financial rain happens, too.
Worry always makes your wood wet. And your relationships can rain on your wood. Anxiety about what others might do or have done in your family, in your neighborhood, on your job, or even your church can douse the very holy flame that would relieve what vexes you. To Boy Scouts, a bit of flame is too valuable to waste. You can't run out after matches in the wilderness and sparks are hard to come by, but they know what to do when their wood is wet.