Hatred,darkness,graveyards,Satanism,demons,demon worship,the night,death,Black Metal,War Metal.
Anyone who has demonic hatred in their soul and those who are true followers of the dark path.
Gorgoroth,Tsjuder,Sargeist,Typhus,Mayhem,Immortal,Satanic Warmaster,1349,Winter of Apokalypse,Black Witchery,Dark Funeral,Darkthrone,Emperor etc
Horror movies such as The Evil Dead,Night of the Living Dead,Saw,Halloween,etc
Any Stephen King books
People with pure demonic hatred in their hearts.