雲
海が雲を作り
風が雲を運び
雲も実は海であり、海も雲なのだ
そんな実にシンプルなボールを、誰かが地球と名づけた訳だ
The sea is structure about clouds.
A wind is progress about clouds.
In fact, clouds are also the seas and the seas are also clouds.
It is why someone named such a very simple ball the earth.