The pentacle or pentagram is loaded with symbolism ranging from ancient man to modern day beliefs. The prefix “Penta” means five, gram comes from the Greek “what is written” it also often called things like pentangle meaning five angles and so on.
The Pentacle Across The World
This shape has mesmerized mankind since its early dawn, examples of how this symbol has captivated the imagination of people across time can be found in just about every civilization and time-period. In ancient Asia, the pentagram represented what they considered the five elements, earth, water, wood, fire, and metal and how they are all related. The symbol was also meant to represent man with its four appendages and the head or the five wounds of Christ. You can see the relationship between these meanings behind the pentagram and the opposite meaning in the inverted version used by Satanist of the church of Satan, by representing upside down they convey the opposite meaning and just like the five pointed star with one point on top may resemble a human being, the same upside down can represent the head of a goat, also used in the aforementioned church.
In the renaissance it was seen as a magic symbol, attributing the five neoplatonic elements to each of the points
The pentagram has often been used to ward off evil, in 14th century literature it is mentioned as a symbol of truth and goodness.
The five-angle symbol has always been linked to Venus as well, and interestingly it you look at Venus from the earth it will reveal a path with a pentacle in it. Successive inferior conjunctions of Venus repeat with an orbital resonance of about 13:8—that is, Venus orbits the Sun more or less 13 times for every eight orbits of Earth—shifting 144° at each inferior conjunction.[35] The tips of the five loops at the center of the figure have the same geometric relationship to one another as the five vertices, or points, of a pentagram, and each group of five intersections equidistant from the figure's center have the same geometric relationship.
Different nations have used the pentacle as part of their national imagery, in morocco it sits in the middle of its flag as its main symbol, for them the star represents Love, Truth, Peace, Freedom, and Justice. In china the four stars and their relationship represent the unity of Chinese people under the ruling party. In Ethiopia the star represents the unity of all Ethiopian nationalities
There have also been countless organizations of note that have used the pentagram as their symbol
Wicca
Lastly the pentacle is currently used by the wicca movement to symbolize mankind, each of the triangles of the pentagram symbolize one of the four elements, earth, water, wind and fire and the fifth triangle, or the fifth element is meant to be non-other than the spirit, elevating the profane (matter) to the divine (ish)
Like it happens with most images of power, the more people focus their intention on them over a period of time the more it imbues them with that intention, since time immemorial the pentagram has been seen to be a ward against evil, a symbol of the divine and an image of power.