This book aims to use language that penetrates people's hearts and penetrates the emotions on the back of the paper, so that readers can walk into the collection of essays and feel the warmth, coldness, lingering, indifference... Of the secular world: I know that in this "turbulent" world there are rapids, pebbles, lush forests, mountains, undulating roads, and the endless abyss just around the corner. I'm not afraid of the difficulties after overcoming all the tribulations. I'm afraid of the stagnant water that will be there afterwards, as cold as ice. So, I tried hard to find a place with light, and kept looking...