When symbols are misused for political or authoritarian purposes, their meanings can become confused, twisted and misunderstood, even flipped entirely.
An example of this is the swastika, which was first seen in carvings dating back 12,000 years, and has been a symbol of well-being, good fortune and prosperity to Buddhists and Hindus. Since the Nazis stole it as their own, however, we now associate it with hate, fear and death.
The all-seeing eye is one of the great omnipresent symbols of all time, most notably now as seen on the dollar bill. It has also found a contemporary home in pop culture as the trademark of occult worship and the Illuminati and the New World Order, used ad nauseam in music videos, celebrity photo shoots, and even appearing as a theme in a Taco Bell commercial.
This predominantly fearful association between the all-seeing eye and Luciferian overlords belies its meaning to Christianity, where it is known as the Eye of Providence, or the Eye of God.