One's true home is where one feels happiest.

(UK, Ireland) There is money to be made even in unpleasant, dirty jobs.

present participle of hunt where the ducks are

(idiomatic) To seek opportunities or results in situations or places where they are most likely to be found.

Asked to find out where a wounded or ill person is feeling pain.

where are we going?

where are your parents?

(Canada) Where things are headed; to a predicted future state of things.

Alternative form of where the puck is heading

(rhetorical question, colloquial) Used to emphasize that life passes quickly.