Just the facts on religion.

Inverted Pentagram or Pentacle

The inverted pentagram (or pentacle, when inscribed within a circle) is a five-pointed star with its point facing downward. It has been associated with the occult and Satanism.

The 19th-century French occultist Eliphas Levi wrote that the pentacle had dark symbolism when inverted:

"A reversed pentagram, with two points projecting upwards, is a symbol of evil and attracts sinister forces because it overturns the proper order of things and demonstrates the triumph of matter over spirit. It is the goat of lust attacking the heavens with its horns, a sign execrated by initiates."

Sources