VI. The Connection Between the Higher Aspects of the Human Constitution and the Physical Body — The Effects of Opium and Alcohol
Likewise, you may ask yourself: what is the reason for one or the other in the case of fish? Now I would just like to point out that you will see that fish that live more in cloudy water have a much darker color than those that live in bright water. Those fish that seek out the darkness are bluish, even black. Those fish that live in lighter places are lighter in color themselves. So you can see how the external influence of light and warmth affects the fish.
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