Knowing why you live is a very high cognitive stage, the accumulation of knowledge of oneself and society have reached a certain height, see through the hypocrisy of the ideal, see through the desire of the obsession, and then all the life has become no difference, that is, the Buddhist so-called undifferentiated mind.
But there's still a gap between the until and the done, and unless the realization is extremely thorough, you'll always have an unwillingness in your heart.
Personally, I feel that this sentence, if you can understand it, understand it, if you read it and feel that you can't understand it then I guess someone else explained it to you you still seem to understand it. In fact, it does not matter if you do not understand, because philosophy is something that is relatively abstract. And this sentence, I guess a thousand people have a thousand kinds of interpretation, there is no need to know which is right, have their own understanding and sense of identity is good.
Like when I just read this quote, I thought it was so well written, but I can't give you an answer right now because I can't really seem to be able to be very specific and clear about how I understand it.
People who know why they live, mostly because they have a purpose in their heart. If you have a goal in mind, life becomes easier, even if you encounter something unhappy, think about why you live, all the bitterness can be ignored.
I really like what a friend said: while you are young, you have to do things that will make you cry when you think back years later. Although two years have passed, this sentence has been echoing in my ears, so that I overcame life, work some big and small difficulties and setbacks. What is reasonable in life is training, what is not reasonable is grinding, when we have faith, what kind of hardship can be overcome.
In fact, this sentence simply tells you that a period of time, have a goal, will not care about those who do not care about things. And it's also true that many people, who know what they live for, can't do it without ignoring the obstacles that life throws in their way. And they get caught up in the mundane drama. It's only motivating if the will is strong and the goal is clear and difficult.