Earth is sky. Sky is sky. Earth is earth. If you say you know the correct one, the stick will hit you thirty times. If you say you don't know the correct one, the stick will also hit you thirty times.
Sky is blue.
Earth is brown. Seems I've been practicing Zen for only a few years, but already eighteen years have passed. When I was twelve years old, I remember that my mother and I went to the Korean temple, Dharma Sah, which had just opened in Los Angeles. There, for the first time, we met Seung Sahn Dae Soen Sa Nim. He gave a dharma speech that day.