What is Divining?

"Divining" is also known as "dowsing". According to the Merriam-Webster Dictionary, the definition of to "dowse" is:

"To search for an underground supply of water by using a special stick that leads you to it."

The "special stick" is known as a "divining rod".
This is what a divining rod typically looks like:

dowsers.org is the official website for the American Society of Dowsers. This site contains information about how divining is currently used and where people use it around the world. Anyone is able to register to be a member of the American Society of Dowsers.

To some people, the act of divining is considered a science. Other people see divining as an ancient superstition.

This website has interesting information on divining as an ancient superstition that many people saw as a form of witchcraft.

The USGS website explains the scientific reasoning behind successful dividers.

Divining has typically been associated with the use of water irrigation, but some people believe that they can divine for ancient artifacts and riches in the earth. I'm curious to hear the uses of this craft in The Diviner's Tale.