Psychological / emotional perspective: Extreme emotion can be very wearing, so often when we are under stress we can dream, for instance, of a river eroding its banks or of the sea wearing away a cliff.
[1]Material aspects: Such an image can suggest that, by perseverance, we are able to overcome difficulties. There may not be an immediate solution to a problem, but by working away at it, it can be solved.
[2]Erosion being the wearing down of a hard substance, it symbolizes submission to higher spiritual forces or principles.
[3]The “wearing away” in one’s life by time or neglect; research details
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