According to folklore, the daoists believed that celestial beings (仙人) never ate cooked food. Later on, this phrase was used to describe a person who has other-worldly qualities similar to that of celestial beings.
Unfortunately, this is the real world; the real world that contains normal people. The real world is crowded and noisy, and is filled with bitterness and compromise. Only there's no such thing as the other-worldly romantic love that you read about in fairy-tales.