@Paul47:
I wish your explanation was provided by the help button on that page.
Ask and you shall receive https://doc.pfsense.org/index.php/Firewall_Rule_Basics
That is the page linked too, since phil was kind of enough to write it up, I figured I could take a couple of minutes and add them to the wiki. Thanks Phil! Your other great post about multiwan and rules needs to be added too, off next week its on my todo list ;)