Sigmund Freud called this work the first great blow to the human ego:

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Copernicus' Revolution of the Heavenly Orbs challenged the widely accepted Ptolemaic model of the universe, which placed Earth at the center of the cosmos, and instead proposed a heliocentric model with the sun at the center. This work struck at the notion that humans were at the center of the universe and challenged the widely held belief that the Earth was the most significant celestial body. This shift in perspective had significant implications for humanity's understanding of its place in the world and was seen by Freud as a major blow to the human ego.

Sigmund Freud Called This Work the First Great Blow to the Human