"ダイヤモンドは地球の闇の中でしか見つけることができず、真実は心の闇の中でしか見つけることができない"

Simplified Meaning:

Finding valuable things often requires effort and searching in places where they are hidden. Just like diamonds, which are buried deep in the ground and only found after digging, important truths or insights are often hidden in our thoughts and difficult experiences. For example, when someone goes through a tough time, like losing a job or facing a big challenge, they might feel sad and confused. But during these hard times, people can learn important lessons about themselves and life that they wouldn’t discover otherwise. By thinking deeply and reflecting on these experiences, they can find new truths that help them grow stronger and wiser. So, whenever you face difficulties, remember that thinking deeply about your problems can lead to discovering important truths, much like how miners find precious diamonds by digging through the earth.