A state of mind one achieves usually when one smokes a marijuana, tobacco joint. Its usually a feeling of sickness with horrible thoughts running through your mind. Combated by closing ones eyes.
Can sometimes be an enjoyable experience. For example, if one has played world of warcraft, you will know
waht happens when you die. That is
darkworld.
Other ways of going to darkworld are
a)smoking a
ciggarette (if a non tobbacco smoker)
b) mixing drugs, especially alcohol
or various other ways