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]
Dream is the general term for any such succession of images. A nightmare is a dream that brings fear or anxiety: frightened by a nightmare. Vision refers to a series of images of unusual vividness, clarity, order, and significance, sometimes seen in a dream. Examples from the Web for dream.