If you actually look at the etymology of the word 'hallucination', what it's come to mean in English is a delusion. But what it really means in the original language is to wander in the mind. That's the meaning of 'hallucination', to wander in the mind.
Terence McKennaNature loves courage. You make the commitment and nature will respond to that commitment by removing impossible obstacles. Dream the impossible dream and the world will not grind you under, it will lift you up.
Terence McKennaThe drugs of the future will be computers. The computers of the future will be drugs.
Terence McKenna