Since it hides in darkness and avoids the light, the owl also came to symbolize Satan, the Prince of Darkness.

The Bestiaries tell us that the owl is a filthy bird, because it pollutes its own nest with its dung. It loves to live around tombs and decaying structures. When the owl ventures out into the daylight, the other birds attack it.

For the medieval men, the owl also represented the Jews who have rejected Jesus Christ.

Source: http://www.traditioninaction.org/religious/f032_Owl.htm

Since it hides in darkness and avoids the light, the owl also came to symbolize Satan, the Prince of Darkness.

The Bestiaries tell us that the owl is a filthy bird, because it pollutes its own nest with its dung. It loves to live around tombs and decaying structures. When the owl ventures out into the daylight, the other birds attack it.

For the medieval men, the owl also represented the Jews who have rejected Jesus Christ.

Source: http://www.traditioninaction.org/religious/f032_Owl.htm

Linked to Death and the Underworld

The owl also serves as a symbol related to the guardianship of the underworlds, and a protection of the dead, as seen in cultures such as the ancient Egyptians and Celtics.

The Minerval Seals of the Illuminati

When it comes to the Bavarian Order of the Illuminati, owl symbolism played a role with the secret society associated with the Minerval Academy – known as one of the early foundations of the society. There have been medallions and other artistic depictions that have incorporated the owl to represent the Minervals. Only a few examples of such medallions exist (which were worn around the necks of Minerval initiates); the design centered on an owl holding an open book.

Source: http://www.unexplainable.net/info-theories/The-Significance-of-the-Owl-as-it-Pertains-to-the-Occult-and-Illuminati.php

Already in the Bible, in ancient Greece, in ancient Egypt, in Japan, and in Hinduism, the owl's reputation as an omen for great misfortune or death, or the worship of the realm of the dead. In Shakespeare, the owl announces imminent murders in the plays Julius Caesar and Macbeth.

Source: https://steemit.com/conspiracy/@oendertuerk/the-owl-of-minerva-from-the-illuminati-to-the-freemasons-and-its-symbolic-meaning