Painting and scratching paint away

Painting and scratching paint away, that was what filled my day again. Three days ago I thought that painting would be finished. It was red and yellow and brown with a lot of scratching. Today another era I did cover everything with a thin layer of black and started scratching again. Different lines because the tension in my body and my mental and emotional state was different.
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In prehistoric time they did their engravings in the rock surfaces,with stone tools. They left it behind, as they were nomadic people, and later continued. Sometimes the same person, sometimes someone else continued on the same location. Sometimes there were a couple of thousands years in between. There are drawings over drawings over drawings making webs of lines with a few recognisable figures and a lot of carefully drawn lines with an unclear meaning. 
I love those webs of lines. And I love the idea of historical layers, making different times present at the same time.It is nice to have that visually before you. Of coarse it is true always and everywhere that all those different moments in history are present, but you do not see it. You do not realise it.