A cargo cult is a belief system among members of a relatively undeveloped society in which adherents practice superstitious rituals hoping to bring modern goods supplied by a more technologically advanced society.
Cargo cults often develop during a combination of crises. Under conditions of social stress, such a movement may form under the leadership of a charismatic figure. This leader may have a "vision" (or "myth-dream") of the future, often linked to an ancestral efficacy ("mana") thought to be recoverable by a return to traditional morality. This leader may characterize the present state as a dismantling of the old social order, meaning that social hierarchy and ego boundaries have been broken down.
jill was never spoken to about the league by the way