A proverb signifying that everything has its origins or source, just as a tree's leaves eventually fall to its roots.

树高千丈，叶落归根，人无论走多远，都不应忘记自己的根在哪里。

The act of an expatriate or someone living far from home returning to their place of origin in old age.

他在海外漂泊半生，晚年决定回乡定居，真是树高千丈，叶落归根。