Hallucinogenic Drugs cause only dreams. The effects are very pleasant which starts the cycle of drugs to produce the dreams and dreams to cause the drug use.
Dreams are mental images during an unconscious state. Dreams are not real in any sense of the word.
Drugs also mask pain or produce conscious pleasure. Both states are abnormal. Drug-produced pleasure is a false pleasure, not part of reality.
The promise of drugs; a false reality; a non-universe of unicorns and demons without substance; a false integrity; a non-existence. A hallucination. Unfortunately for those habitues “you can check out any time you like but you can never leave”