A Musical Dream

I had a strange dream this morning. 

I dreamed that I was in bed asleep when my clock radio woke me to the sound of a symphony playing on my customary classical music station.  Time to get up.  I threw off the covers and swung my legs around to sit on the edge of the bed.  Leaning over, I tapped the the clock radio's off button.  The music kept playing.  I tapped again, harder.  The music kept playing.  Puzzled, I turned the knob to change the radio station.  The symphony continued undisturbed despite my actions.  I felt perplexed and alarmed. 

Then I woke from the dream.  The clock radio was indeed playing a symphony, the same symphony that had somehow seeped into my dream.  But now when I hit the off button, the music stopped.

This is how you know you are truly awake: your actions produce expected results.