extended indulgence in the dark side reshapes the user's psychology, resulting in a loss of humanity, morality, empathy, and the ability to love, leaving every sith, to varying degrees, amoral, cruel, sadistic and violent. considering this dark change in personality to be a transformation into a different person altogether, some who turn to the dark side take on a different name, as they regard their former persona as dead and destroyed. sith lords in particular adopt a new name upon their initiation into the order, prefixing it with the title darth (e.g., "darth vader"). severe saturation in the dark side may even lead to physical degradation. although sith are deeply affected by the machiavellian methods and dark arts they practice, they are not portrayed as necessarily irredeemable: some sith, most famously darth vader in the final moments of his life, have renounced the order and the dark side of the force.