From the point of view of the waves, there is birth and death, high and low, rising and falling. There are distinctions between waves. But each wave is made of a substance called water. It is a wave, but at the same time, it is water. Concepts such as birth and death, higher and lower, rising and falling apply only to the waves, not to the water itself. So the waves represent the historical dimension, and the water represents the ultimate dimension.
