Forest creates a landscape. Trees make forest. I wonder how trees stand there. Under the trees in the forest, you find grown seedlings appropriate for the environment. The fact that the seed grows means the natural environment (such as, light, temperature, water and soil) met the condition necessary for the seed to grow. The seed doesn’t grow bigger if the environment doesn’t meet the condition. In the battle of survival, most of the seedlings are eliminated by natural selection and they disappear eventually.

However, though they are destined to disappear, there is the raison d'etre: they play a certain role in the circulating system in the forest. Seedlings actively work in an invisible way: they prepare for the next generation, prevent fallen leaves and branches from leaving, and become soil to be a nutrient element. Trees that make forest are grown from seedling, most of which are eliminated by natural selection, and the life of trees began from tiny little seedlings.