Although the museum funded The Passage, Tang successfully avoided the typical stale tone found in cultural promotion films. He put the emphasis on the museum, Cold Food Observance, the drifting lives of the drama's characters, and their experience of not having their talents recognized.
《經過》雖是故宮出資，但鄭文堂成功避免了文宣片常有的匠氣，而把重點放在故宮、《寒食帖》，以及劇中角色共通的流浪、漂泊，與懷才不遇的狀態。