Causal Layered Analysis (CLA) allows for the analysis of a subject on four different layers: litany, systemic causes, worldview/discourse, and myths/metaphors.  The litany refers to the recognition of observable data, facts, and trends, representing the superficial and visible aspects of the subject.  The second layer, systemic causes, addresses the underlying institutions and norms influencing the phenomenon. It deepens the understanding of often invisible roots of the factors and developments identified on the first layer.  The third layer, worldview, focuses on prevailing discourses and established beliefs playing a role.  The fourth and deepest layer examines the myths and metaphors underlying the worldviews.