Primary Succession on a Rock. 1  Obviously, on bare rock, no develop soil exists. The niche of the lichen (mutualistic relationship between algae and fungi) is to live on the rock where it releases carbon dioxide, which when mixed in rainwater, makes a weak acid (carbonic acid).
To dream of chaos, is a sign that you will go into a difficult period filled with change, uncertainty and unknowns. [Other similar dream interpretations]
Jungians would say that the theme of your dream belongs to a collective unconcious, meaning that the human kind share this picture like it was in some part of our DNA. The end of the word is discussed in the bible, Greek mithology, etc. The simbolic meaning of the apocalypse it's the absolute annihilation of everything.