This summary is not the rule. The rule text controls.
Here's a plain English summary:
If two or more people have a disagreement but haven't gone to court yet, they can choose to try mediation together before things get that far. Both sides have to agree to use this option, since it only works if everyone is willing to participate.
People can bring a lawyer with them to these mediation sessions, but they don't have to. This means you can try to work out your dispute with a neutral mediator's help, with or without legal representation by your side.
This option is meant to give people a chance to solve problems early, before a lawsuit is filed, which can save time and money for everyone involved.