Karma

In modern culture it is seen as a reaction to your actions. So it is a cycle where if you do good things then good things will happen to you. And the same is with bad deeds. 
With Joinees it does not matter if good things happen to them but they generally feel good about carrying out a good deed. These good deeds are normally carried out on Good Friday. The main link with Joinees and Karma is that when joinees join, then they are also joining an army called The Karma Army.