Look at the explanation in the Book of Changes: "Looking at astronomy from the top and geography from the bottom is the principle of knowing the secret." Later, "looking up and looking down" refers to multi-party or careful observation. Jin's "On Health": "If the harm is small, it will be saved by it, so there is no cure for it; Control the field of ordinary people, so you have the life of everything. It's all true to look up and down. " Song Minglian's Wen Yuan: "I would like to look up and look down, painting strange pictures is like yin and yang, changing and connecting, I am endless, I become a world." Taiping Tian Kun Hong Rengan's "Military Records: A Message to the Scholars in the World": "Between looking up and looking down, there must be lively secrets coming and going, not the owner of ancient books."

Word decomposition

The latter explanation is face up, as opposed to "prone": head up. Look up. Admiration: I've heard a lot about you. Admire. Dependence: Yang Cheng. Breathe by looking up. In the first couplet, it is used before "please, pray and earnestly" to show respect; The following words indicate the command: look up and respect the photo. Take it and point to the explanation of overlooking. Look down. Han Zhang Heng's "Xijing Fu": "The flag pavilion is 50% off, overlooking the tunnel." Cao Pi, Wei of the Three Kingdoms, wrote a short song: "Look up at the curtain and look down at a few seats." Southern Liang Dynasty's "New Engraving and Missing Inscription": "So I looked down on Pang Luo and went to the stage to upgrade the library." Look down, look down.