It's Rory's birthday, and her grandmother and mother each plan a party representative of their respective styles. Emily's elegant party so discomfits Rory that they argue. To make peace, Emily and Richard attend Lorelai's informal bash the next evening.
A religion is a belief system with rituals. The missionary kopimistsamfundet is a religious group centered in Sweden who believe that copying and the sharing of information is the best and most beautiful that is. To have your information copied is a token of appreciation, that someone think you have done something good.