This summary is not the rule. The rule text controls.
This rule explains when a court case can be moved to a different county. Either side in a lawsuit can ask the court to change where the trial happens, but they need a good reason.
There are three main reasons a judge might agree to move a case. First, the case might have been filed in the wrong county to begin with, one that doesn't actually connect to the parties or the dispute. Second, if there's a real concern that people in that county couldn't be fair and unbiased, like if the case has gotten a lot of local attention or involves someone well known in the community, the trial can be moved somewhere more neutral. Third, if moving the trial would make things easier for important witnesses and would help justice be served, the court can approve that too.
In short, this rule gives people a way to ask for a fair shot at trial. If staying in the original county would cause problems, whether it's about fairness, convenience, or just having filed in the wrong place, the court has the power to send the case somewhere else.