Just like its celestial counterpart, 18th vibration also has a dark side. When negative, it can pull an individual into a world of illusions, fears, doubts, melancholia, and depression. As a result, they may begin to avoid people and turn to drugs, alcohol, and other substances as a way of escaping reality. Some may try a different approach, such as practicing black magic. In a deep negative state, 18th vibration can cause obsession with doom and gloom and manifest as manic depression, phobias, and psychosis.