Was it a vision, or a waking dream?
•I understand that sitting under a tree or in a bathtub, wonderful thoughts can occur. I'm thinking of Mr Newton, and his law of gravity; or Archimedes trying to find the soap when the whole theory of displacement came upon him.
Personally, I find the bar stool most conducive to blinding epiphanies.
The interval between catching the barman's eye and the settling of a pint before imbibing has expanded my consciousness beyond the outer limits; and that, before even a drop is taken.