There must always be a reason for existence in life, and that reason is faith.
Note: It doesn't really matter what exactly you believe in, what matters is the reason that will keep you alive, and the reason to fight on, to achieve your goals.

人生总要有一个存在的意义，这个意义就是信仰。
注意：
信仰的具体内容其实不重要，重要的是能让你活下去的理由以及奋斗下去的理由，去实现目标的理由。