expression, godan verb (-mu)
grasp at the air; try to catch the wind
Idiomatic expression meaning to attempt something impossible or futile, like trying to grab empty air.
彼の説明は抽象的すぎて、空を掴むようなものだ。
His explanation is too abstract; it's like trying to grasp at the air.
そんな計画は空を
That plan is as good as trying to catch the wind.