in the clouds

[in the clouds] {adj. phr.} Far from real life; in dreams; infancy; in thought.

When Alice agreed to marry Jim, Jim went home inthe clouds.

- Often used with "head", "mind", "thoughts".

Mary islooking out the window, not at the chalkboard; her head is in theclouds again.

A good teacher should have his head in the cloudssometimes, but his feet always on the ground.

Contrast: COME BACK TOEARTH, FEET ON THE GROUND.