"My good friend passed away, and I am very sad. What should I do?

When you are alive, you will always experience inevitable sadness, birth and death. Probably the saddest thing is to die. It is right to be sad, but some people have left, but they are still living in their hearts. I don't think you should be too sad. If he is your good friend, please remember him. Because of his death, you should cherish the present and don't let him see you depressed. This may be his best answer to himself.