To return to the main topic or subject at hand; used as a standard phrase in traditional storytelling to move past a digression.

To return to the main story or theme; commonly used as a transition in storytelling to signal getting back to the topic after a detour.

Influential 1921 novella by [[鲁迅|魯迅|lu3 xun4]]

The American film "Forrest Gump", or the fictional character of the same name.