…To see a lightning–rod, denotes that threatened destruction to some cherished work will confront you. To see one change into a serpent, foretells enemies will succeed in their schemes against you. If the lightning strikes one, there will be an accident or sudden news to give you sorrow. If you are having one put up, it is a warning to beware how you begin a new enterprise, as you will likely be overtaken by disappointment. To have them taken down, you will change your plans and thereby further your interests. To see many lightning rods, indicates a variety of misfortunes….
Dream dictionary: Lightning rod dream meanings
The lightning rod is an effective help that protects us from the unexpected things.