enlightenment

enlighten +‎ -ment

enlightenment (usually uncountable, plural enlightenments)

1. An act of enlightening, or the state of being enlightened or instructed.
2. A concept in spirituality, philosophy and psychology related to achieving clarity of perception, reason and knowledge.
   • 1893, Thomas Huxley, Evolution and Ethics:

     But the man who has attained enlightenment sees that the apparent reality is mere illusion, or, as was said a couple of thousand years later, that there is nothing good nor bad but thinking makes it so.

• epiphany
• peace that passeth understanding
• satori