長阿含經 7.p102

7.p102

Kāśyapa again said, “Those who are wise explain things with parables. Now, I’ll explain this for you with a story. Once, there was a country where the sound of the conch hadn’t been heard before. A man who was skilled at blowing conch horns traveled to that country. The men and women of the town were shocked when they heard this sound. They went and asked him, ‘What is that sound that’s so melancholic and clear?’