It's About Getting Information
In dowsing, you ask a question for which you have no answer, and the answer is given to you. After you see your first dowsing demonstration, the first question that comes to mind is, “How does dowsing work?” It seems like magic.
The truth is no one knows everything about how dowsing works. There are plenty of theories, but none is accepted as definitive. Let's look at both facts and theories about how dowsing works.
Dowsing is a search, a questioning. When you dowse, you aren't asking an outside authority for an answer. In a sense, you can consider dowsing googling for an answer through your intuitive senses.
Google seems pretty magical if you think about it. Years ago, when we were growing up, if you had a question, and you didn't have an encyclopedia at home, you went to the library to research. And sometimes your question was so esoteric that your local library wasn't much help, so you needed to order a book on interlibrary loan. Back in the days when we did genealogical work in the 1980s, to get answers you had to write letters or sometimes travel to foreign countries to discover facts that you can now get in minutes online.
Dowsing actually makes much more sense in this age of instant information. Why wouldn't it be possible to access information intuitively just as quickly as you now can rationally?
Some people believe that all information is in a sort of library called the Akashic Records. Others talk about The Field as holding all information. However you look at it, most dowsers believe that the answers are all there somewhere. Dowsing allows you to get into a receptive intuitive state and access those answers, just like going on Google to get answers rationally.