Dowsing rods have been around since the 15th century if not earlier. Like any other tool they are used for divination and answering questions. Dowsing rods are much like the pendulum (see pendulum) because the answers are in the form of Yes, NO, or “I don’t know”, depending on what you are asking.
For centuries, people did not know how dowsing rods or pendulums worked, they looked on these tools as satanic devices of the Devil. Yet they would use them to identify witches and burn them at the stake.
However, as we all know, the rods were used to condemn poor innocent women, which is why they later became almost obsolete, and brought back by desperate people looking for water. Water flows so it would be a natural conduit for picking up hidden energy sources.