Happening
I've got the hint of my story from the book today. "Happening occurs without any expectation. But you need to prepare for it just in case. For example, you have many possibilities in your life and learn things every day. But one day you may give up due to long time to wait for a chance in your life. However, happening suddenly comes to you without any expectation. If you are ready to cope with it, there is no problem. But if you are lazy about it, you may not fail or miss the chance. That's why we learn things every day. That's all about what I want to teach my students. "