We separate the sentences and understand them sentence by sentence. To put it bluntly, it means "remember the days when you were rich", that is to say, if you are rich, you should remember the days when you were poor. When you have money, you really don't need to suffer. That's because when you have no money or when your parents have no money, you don't work hard and don't know how much you have suffered, so you are relaxed and sweet now. There is also a saying that it is easier to fight the mountains than to defend them. Telling the truth is not easy to conquer the country, and it is even more difficult to protect our ancestors and lay down the country. It is because some descendants don't know how to be prepared for danger in times of peace that their ancestors knocked down the mountain and handed it over. Don't forget your hard experience at any time.
Let's analyze the following sentence again: "How many people have you met with difficulties?" . As I said before, there is no shortage of icing on the cake in this world, but there are really not many people who give timely help. Maybe this is human nature! Some people flatter when they meet the rich, but they put on a disgusting face when they meet the poor. When you are down and out. No one will help you unless you are a very good friend. Of course, those who usually play better may be fair-weather friends, not real friends. If you ask them for help, they won't help you, and they may even hurt you. In order not to let us fall into this state, we must be prepared for danger in times of peace and remember the days when we were rich.
The remaining two sentences are actually metaphors. I can help others very readily, but when the person who asks for help becomes me, others are like June frost, very heartless. The world is cold, we can't change others, we can only make ourselves better, at least in a better state, so that we can live happily.
These words clarify a truth in life, and we need to be prepared for danger in times of peace.