In a flashback, Áine searches desperately for Seán, who has gone missing. When he is found, it's clear he's struggling with his mental health and needs help.
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.