To be completely detached from worldly concerns and mundane affairs; to be serene and untroubled by the common run of things.
他一生淡泊名利，隐居山林，萧然尘外，过着清净自在的生活。
He lived a life indifferent to fame and fortune, secluded in the mountains, completely detached from worldly affairs, living a pure and free life.
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