“It is easy to recall from everyday experience that neither electricity nor magnetism have visual properties. So, on its own, it’s not hard to grasp that there is nothing inherently visual, nothing bright or colored about that candle flame. Now let these same invisible electromagnetic waves strike a human retina, and if (and only if) the waves each happen to measure between 400 and 700 nanometers in length from crest to crest, then their energy is just right to deliver a stimulus to the 8 million cone-shaped cells in the retina. Each in turn sends an electrical pulse to a neighbor neuron, and on up the line this goes, at 250 mph, until it reaches the warm, wet occipital lobe of the brain, in the back of the head. There, a cascading complex of neurons fire from the incoming stimuli, and we subjectively perceive this experience as a yellow brightness occurring in a place we have been conditioned to call “the external world.” Other creatures receiving the identical stimulus will experience something altogether different, such as a perception of gray, or even have an entirely dissimilar sensation. The point is, there isn’t a “bright yellow” light “out there” at all. At most, there is an invisible stream of electrical and magnetic pulses. We are totally necessary for the experience of what we’d call a yellow flame. Again, it’s correlative.”
― Robert P. Lanza, Biocentrism: How Life and Consciousness Are the Keys to Understanding the True Nature of the Universe
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Peace and Love
Seth Kelly Curtis
Kelly's Quest 