The first star represents the band's early days, when they were still developing their sound and style. The second star represents the band's middle period, when they achieved mainstream success with albums like "Ænima" and "Lateralus." The third star represents the band's current era, which is marked by a return to their heavy metal roots.
The three stars also represent the three main themes of the "Parabola" song: addiction, redemption, and enlightenment. The first star represents addiction, the second star represents redemption, and the third star represents enlightenment.
The "Parabola" music video is a powerful and visually stunning work of art that perfectly captures the band's message of hope and redemption. The three star-type symbols are a key part of the video's symbolism and help to convey the band's message to viewers.