This is not a drill.

I had a nightmare last night. It was an air raid. I was anxiety in a shelter in the dream. BUT, It
was only reflection of real disaster.
Tsunami was real event,and air raid was dream. Long before,I was interested in dream interpretation and used to read C.G.Jung.
One day,C.G.Jung had a strong impressive daydream.It was a formidable deluge over Europe. He couldn't understand the meaning of the dream but his mind was obsessed by it's image after that. What did it predict? It turned out before long. WW1 occurred.
"This is not a drill" is famous phrase known as a first telegraph of a Japanese air raid on pearl harbor. Why was the phrase used?. It meant"this is not a fake but a true event." To be short, I felt the disaster as if it were a fake event on the television.(Although I was swayed by the strong quake.)and I dreamed "This is not a fake".
Historic event might be such a thing as"Too big to feel the reality"