Charging our batteries.

One of my earlest memories of childhood, is taking a glass battery ,which was used to power the radio, to be charged up. Those of us who run a car ,know what it is ,to have a flat battery, and having , to charge it up, I have a tooth brush that continually needs recharging. The spiritual application to all this is simple, like batteries we become run down, bodily and spiritually, whats the answer ? rest , have a break , take a holiday ,and most important ,wait upon the Lord,for we are told, they that wait upon the Lord shall renew their strength,[Isaiah 40v31. a.v]