I wanted to send a photo to the Japanese, but my friend stopped me. What's the problem?

Your friend may be worried that this word will cause misunderstanding or discomfort in Japan. Although "Heaven is unjust" is a phrase of China, it may not have a clear corresponding concept in Japanese culture. When choosing a gift, it is best to consider the cultural background and sensitivity of the recipient. If you are not sure whether the other person will understand or accept the meaning of this word, or worry that it may cause misunderstanding or doubt, then it may be better to consider choosing a gift with more universal recognition and positive significance. You can try to choose a calligraphy and painting depicting beautiful scenery, famous buildings or auspicious as a gift.