Collins English Dictionary (2005) -
hallucination - seem to see something that is not really there.
Chambers Etymological Dictionary (1895) -
Hallucination - error, delusion, perception of things that do not exist.
Two different dictionaries dated some 100 years apart, both claiming that a 'hallucination' is something that does not exist, or is not really there. No-one appears to have taken deep thought as to how one can see something that is not there! Many dreams are exactly like real life, and whilst we are in them we believe that we are 'living the dream'. In fact, which exactly is real life our awakened state, or our dream state?
The Chambers Dictionary does in fact give the game away, since it traces the word back to the Latin -
- Aryaman - India.
- Airyaman - Persia.
- Ariomanus - Gauls.
- Irmin/Ermin - Saxons.
- Eremon - Ireland.