What philosophy does the ancient poem "endless grass on the grassland comes and goes with the seasons, and wildfire never completely devours them, but they grow taller again in the spring breeze" refl

What philosophy does the ancient poem "endless grass on the grassland comes and goes with the seasons, and wildfire never completely devours them, but they grow taller again in the spring breeze" reflect? Everything in the world is moving, changing and developing. The endless grass on the grassland comes and goes in four seasons. Wildfire never devours them completely, but they grow taller in the spring breeze. This ancient poem reflects that everything in the world is moving, changing and developing, and this kind of movement, change and development has its basic order and law. Ancient poetry, that is, China's ancient poetry, refers to China's poetry works before the Opium War 1840.