This "eureka" moment of a sudden flash of knowledge is what Professor Dietrich calls spontaneous and cognitive creativity. It involves the basal ganglia of the brain that operates outside your conscious awareness. "Out of box thinking" requires the conscious brain to stop working. By doing this, your subconscious takes the driver seat and the PFC is activated in connecting information in new and novel ways.
Creative inspiration is mysterious. When the conscious brain and the PFC are resting, it is then possible for spontaneous ideas and creations to happen. Wolfgang Amadeus Mozart sums it up very well.
”When I am… completely myself, entirely alone and of good cheer — say, traveling in a carriage, or walking after a good meal, or during the night when I cannot sleep; it is on such occasions that my ideas flow best and most abundantly.
“Whence and how they come, I know not; nor can I force them. Those ideas that please me I retain in memory…[and] if I continue in this way, it soon occurs to me how I may turn this or that morsel to account…
All this fires my soul, and, provided I am not disturbed, my subject enlarges itself, becomes methodised and defined, and the whole, though it be long, stands almost complete and finished in my mind, so that I can survey it, like a fine picture or a beautiful statue, at a glance… What a delight this is I cannot tell! All this inventing, this producing, takes place in a pleasing lively dream.”
Amygdala is the seat of spontaneous and emotional creativity. These spontaneous and emotional creative moments are very powerful, such as an epiphany, or a religious experience. This type of creativity is not cognitive. But often skill (writing, artistic, musical) is needed to create something from the spontaneous and emotional creative idea. As Professor Dietrich mentions, you cannot design for this experience to happen. It is spontaneous!
Your ideas and your thoughts will open up new worlds. Go Create!