to be daydreaming or not paying attention to reality
блуждать в своих мыслях или не обращать внимания на реальность (bluzhdat' v svoikh myslyakh ili ne obraschchat' vnimaniya na real'nost')
"He was having his head in the clouds during the lecture."
"Он был с головой в облаках во время лекции." (On byl s golovoy v oblakakh vo vremya lektsii)
to decline suddenly and dramatically
to try to achieve something impossible
to prepare for all possible situations
to overcome or stop focusing on something
enjoyable activities; playful behavior
To survive or recover from a difficult situation.