Written by Kang Ki-jin, the best epidemiologist in Korea, who has devoted his entire life to the Book of Changes, this volume containing 25 poems that are especially necessary for those in their fifties, the "hope of Korea." Through this book, you will be able to understand important wisdom in life after 50 and get the necessary advice, from how to improve your luck, how to avoid being screwed, how to make your fortune unfold, and how to have a smooth life. Change your previous life, and the way forward will become clear. At this time when you need to enjoy the golden age of your life, you will definitely need this book, which will give you wisdom about human life and this world, and the direction you want to take. It will help you realize and bring about great luck in your life.