
At sea
Emotionally Conveyed
The phrase often expresses a sense of emotional distress beyond just confusion.

He was at sea after the breakup, not knowing how to cope.
Temporary State
Use it to describe a temporary condition, not a permanent trait.

The new company policy had employees at sea until training was provided.
Not Literally Lost
It's not used for physically being lost, but rather emotionally or mentally.

When the subject changed abruptly, the students were left at sea.
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