This work expresses “Carp climbing up a waterfall”. This fables meaning is “Do Beyond the Limit”.
With greater effort and beyond the limits, there is great success waiting there.
In the fables, a lot of fish tried to swim up a waterfall in the rapid stream river, but only carp could wax on and thus became dragons.
A work expressing the importance of overcoming worldly desires, striving to exceed the limit without giving up.