Trees and plants in the land also can be strong according to how they are trained. Since people are materials, they can be strong according to how they are trained. It is the same with the heart and also the soul that belong in the mental world. 陆地上的树木或植物也会随着被锻炼而变强。人也是物质，所以会随着被锻炼而变强。属精神界的内心和魂也是如此。

郑明析 (著 Author), Yo Jong (摄影 Photographer)