Is LRL and dowsing for treasure only mental ?

[goldfinder]

Many of us fool ourselves and follow the obsession for years.

I ran a series of dowsing tests with various LRL and assisted dowsing devices with some good dowsers.

In condition 1: used a well known LRL signal generation type. A gold coin was the target. The dowser could detect using swivel rods.

In condition two at another location a gold coin (same one). I then mentally erased the supposed signal line. Using the LRL again the dowser could not find the signal line.

Is the signal line a mental fabrication created by belief of dowsers ?
Goldfinder