Someone with his head in the clouds is a person whose mind is not on what is happening in real life.

VOA: special.2009.03.08

There'd be certain activities perhaps, for example putting a gun to your head, that would put an end to your life.

也许会有某些特定的活动，比如用枪指着你的头，会结束你的生命。

耶鲁公开课 - 死亡课程节选

Mister Rowan said being chosen to head the United States Information Agency and the Voice of America was one of the great honors of his life.

VOA: special.2009.11.01

This is one of the key steps in financial planning, as it enables you to face life head-on and handle those little and, sometimes, big things that come your way.

FORBES: 8 Steps to Paying Off Your Mortgage Early

Mary Schapiro did not bring good things to life as head of the Securities and Exchange Commission.

WSJ: Imagination at Work

An ambulance spokesman said the man had a potentially "life-changing head injury".

BBC: Lifeguards attend injured kite surfer