First off, the mediator must assess the merits of your case and the pertinent issues arising from such. Through your statement, your divorce mediator will know what questions are needed to be asked, what statements are needed to better support your claim and what other concerns must be put forth to make sure that you and the mediator are on the same page.
The final step is knowing what agreements are needed for the spouses and assessing if there are still differences that must be settled. This is to ensure that both parties remain on the same level of understanding, and that no further inconvenience will step in front of the parties.