Take the length of both my arms as square;  I create a square-shape stainless basin which contains water, light, air soil and dead woods picked up from wild and seaside.  I cover the soil on the dead wood then cover asmall piece of moss acquired from the drain. Less than a month, the moss grows to tundra on the dead wood and other kinds of plants also slowly germinate from the bottom of the soil and grow through from the top layer of moss to form young vegetation which becomes a vivid life stage. Life finds a way.