Next up in the COoR is the statement of purpose. While this may seem like something extra that could be skipped over or going through quickly, one should consider it a bit more.
At the most basic level, this is stating what the ritual is about and for. Granted, all those gathered should know this before showing up to the ritual, but some people just don't pay much attention, especially if it's not a high day. We also can have some differences depending on the culture are celebrating in. The overarching theme is likely similar, but details will be different.