Language Point 39

Here we see the conscious mind, in a person of highest ability, actually watching the unconscious at work. (Para. 5)
Meaning: Here we see the conscious mind of a highly creative person is actually watch the unconscious mind working.
at work: having an effect; in operation
The report suggested that the same direction was at work in political affairs.

报告表明在政治事务方面也存在同样的倾向。
It is important to understand the powerful economic and social forces at work behind their actions.

重要的是要懂得在这些措施的后面，经济和政治的力量所起的强大作用。