Peeping at the sky is an idiom, pronounced as gu m: n zh not ng ku and ti ā n, which means looking at the sky through the hole of a bamboo tube. Metaphor is narrow-minded or one-sided.

explain

Tube: bamboo tube; Peep: to look through a small hole or gap. Look at the sky through the hole in the bamboo tube. Metaphor is narrow-minded or one-sided.

A glimpse of the source of heaven

Zhuangzi Qiushui: "Isn't it too small to peep directly into the sky with a pipe and point to the ground with a cone?"

An example of peeking into the sky in a pipe

Rare people, such as clusters. ★ "Historical Records Liang Xiaowang Family"

Looking up to heaven, idioms solitaire:

Heaven and earth are worlds apart; One on the pole; The other is under the telephone pole; The metaphor is very different. Earth: land.

There are many flowers falling from the sky. Metaphor is beautiful but not practical or deceptive with sweet words. It is also used to describe snowflakes.

The upside-down description has changed a lot; It is also described as a fierce fight. Answer: Turn it over.

Beyond a certain realm, it is endless realm. It is often used to indicate that people's vision is limited by objective conditions and cognitive fields.