Wow, Genius. Yeah, life is meaningless in itself, but we can make it meaningful and colorful. So they are happy, because their lives are in their own hands.

• 哇，天才！对啊，人生本身就是没意义的，但是我们可以把它变得有意义。所以他们才这么开心，因为他们的人生掌握在他们手中。