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]
To dream of an abyss, signifies an obstacle that you need to overcome in your life. It may be creating anxiety for you. You are afraid and/or uncertain as to what you will discover about yourself and your hidden feelings and fears. To dream that you are falling into an abyss, symbolizes the depths of your unconscious.