Good word belief, means acceptance of something with no evidence for it.
There are perfectly rational explanations based on ideomotor co-ordination. But, I guess, believing in dowsing is more "fun" than accepting a rational explanation.
I wonder how atomic bonding fits into that somewhat narrow viewpoint ?
The evidence is all around us - we can make substances which kill people, or blow their limbs off, make aircraft that fly, invent wonderful new materials such as graphene ... and yet we still don't know what the 'glue' is that holds atoms together to form molecules ...
We tell school-kids (or used to ... don't know about these days) that this is the result of either covalent or ionic bonding, where electrons are either shared, or are donated to form attractions. Good stories.
Undergraduates are told to forget that and concentrate on Quantum Theory instead. Very clever stuff, with electrons occupying shells and moving around absorbing energy in one form and releasing it in another. Another good story ... until along comes methane (and organic molecules don't get much more basic than methane) where it can be seen that it's electrons don't obey the 'laws' of quantum mechanics ... whoops - better invent a better story ...
Then along comes Molecular Orbital Bonding Theory, in which the electrons no longer stay where they are supposed to - in the bonds themselves - but fly around the molecule as a whole instead, rather like some overactive youngster who's high on sugar and orangeade.
The best one I've yet heard is where electrons are now thought to be located in two different places at exactly the same time. Now that stretches my imagination to breaking point. I'm not saying that it's not true - it's just that back down here on Earth I can't get my head around it ...
When theoretical scientists can eventually formulate a really convincing explanation for some of the more basic things in life, only then will I be willing to dismiss the currently suspect ideas of Homeopathy and Dowsing.
Think we understand electricity ? Check out the 'Catt Anomaly' - Catt's observation doesn't fit into everyone-else's understanding, but it's undoubtedly true - so it has been accepted as 'an anomaly' ... mainly to keep Ivor Catt quiet.
There are many other examples of such 'Platypuses' (or Platypi)* if you should ever want to go looking for them. Eventually you'll begin to realise that 'The Common Sense' is just the story which most people have been indoctrinated into believing. Belief is at the heart of everything human, including Mathematics, the Sciences, even Logic itself.
LJ
* the only known mammal that lays eggs.