"You are mighty forever Hashem" (Shemoneh Esrei)
You alone are mighty, and everyone else is weak. All mighty phenomena are Yours, and they are all demonstrations of Your greatness. Thus, all the mighty phenomena enumerated in this Bracha (wind, rain, food supply, revival of the dead, healing of illness) are intended that men learn from them the greatness of Hashem. Yet none of them are forever; You (alone) are mighty forever, Hashem." --Praise, My Soul.