Harmony of light and life

The owl whose night-bound eyes are blind unto the day cannot unveil the mystery of light. If you would indeed behold the spirit of death, open your heart wide to the body of death, open your heart wide to the body of life. for life and death are one, even as the river and the sea are one…
The meaning of this passage is that it is impossible to understand something completely if you only view it from one perspective. To truly understand the mystery of light, one must not only consider the perspective of the owl, who can only see in the dark, but also the perspective of creatures who can see in the light. Similarly, to understand the spirit of death, one must embrace both life and death as part of a larger whole. This is like how a river and the sea are connected,
even though they may seem separate.