根据下面文字,请自拟题目作文,写一篇不少于600字的文章。文体不限,如写成诗歌,则不少于16行。种子是天成的,浑然无缝。它有门,可是天地间没有一把钥匙能开启它。只有春天的一声呼唤(从不可知的地方飘来),种子的门才梦醒一般显现出来,但它只从里向外打开,而且只能由种子自己开。门一旦如扇一般向世界打开,一个个梦就飞了出去。或许飞成一片森林,或许落进一条大河,流到极远的天边,或许落进一个陡立的山峰的岩缝。它们的命运由各自去创造,因此,树的后代遍及天涯海角。 According to the following text, please write your own essay and write an essay of no less than 600 words. Style is not limited, as written in poetry, then no less than 16 lines. Seeds are natural, seamless. It has doors, but heaven and earth do not have a key to open it. Only the spring cry (floated from an unknown place), the seed door awakened generally appear, but it only opened from the inside out, and only by the seeds themselves. Once the door opened to the world as a fan, one by one the dream flew out. Perhaps fly into a forest, perhaps falling into a river, flowing to the horizon, perhaps falling into the crevices of a steep mountain. Their fate is created by their own, therefore, the descendants of the tree spread across the ends of the earth.