Mine was when i was on the waltzer in a fair, posh music with a violin came on, i had a deep day dream as if i was in a ball and not on the ride, i was wearing a pin striped suit, you could see the linen coming off my trousers where i had worn them before, you could see the olives in the cocktail floating, bobbling on top, you can smell the martini from peoples breath as you speak to them, hear the music in the back ground. hear people chatting in the fore ground. that was my 1st ever real day dream, it lasted around 5mins aparently, it seemed like 10 seconds. Post yours below.