A state of mental and emotional honesty. When all pretense, prejudice, expectations, bravado, etc. are removed, and all that is left is the bare mind.
Pure thought (not necessarily
pure as in good) is more readily accomplished when one is psychologically
nude. Note that psychological nudity has nothing to do with the amount of clothing one is (or is not) wearing; it is a mental state.
After half an hour of chipping away at my preconceived
ideas, I could finally
see what she was
talking about. Fully clothed, I experienced psychological nudity.