Freeze is an interesting concept. If one calls Freeze, the data that is currently in the finder target is stored, and the finder target is set to this data. This basically implies that while unfreeze is not called, you will be looking at the client data the way it was when you called freeze. This notably speeds up finding functions, as retreival of the data is instantly (Simba owns the data). So if you plan to do a lot of finding functions and want to analyse an exact frame, you should check out this functionality.