Some evil is deformation of healthy psyche or soul-field, in which Light energy is veiled, distorted, etc.
Other evil is a more specialized and organized deformation of love of wise (Godly) dominion, i.e., lust for domination; the latter is a type of "a philosophy," if such wizardry may be termed philosophy. However, such is also a deformation, e.g. as sociopathy, which has psychological issues.
The Soulless One;
The Search for the Manchurian Candidate;
The Illuminati by Jim Marrs;
Tavistock Institute by Daniel Estulin;
Dr. Mary's Monkey;
The Tree of the Knowledge of Good and Evil.