Английский словарь американских идиом - in the clouds

{adj. phr.} Far from real life; in dreams; in fancy; in thought. * /When Alice agreed to marry Jim, Jim went home in the clouds./ - Often used with "head", "mind", "thoughts". * /Mary is looking out the window, not at the chalkboard; her head is in the clouds again./ * /A good teacher should have his head in the clouds sometimes, but his feet always on the ground./ Contrast: COME BACK TO EARTH, FEET ON THE GROUND.