below in the nine springs―in the nether world
[explanation] cause: incur. Explore the depths and let the distance come. Metaphor explores profound truth.
[Source] The Book of Changes: "Explore its hidden, hook its deep and reach its far."
[example]
Study hard
Vebien Thorne Jouet
[Explanation] Bian Wei: Tie bamboo slips together with ripe cowhide ropes; Three: divisor, which means many times; Absolutely: broken. The leather rope for weaving bamboo slips was broken three times. Metaphor is studying hard.
[Source] "Historical Records Confucius Family": "Reading" Yi ",Wei compiled three musts."
[Example] We advocate the reading spirit of ~, we advocate applying what we have learned, and expect a large number of innovative talents to emerge.