Calamities explained

[Anonymoose]

Part of the confusion here is that Light can't cause a Calamity directly because Light is not an element. Calamities are elemental. The presence of imbalanced Light, however, skews the elements towards an unnatural umbral charge (astral and umbral are on the elemental energy spectrum). The Seventh Calamity was all elements skewed astrally. The eight would have been the opposite.