Henry Winkler Amazing Story About Nazi Escape, Coffin and Spider Plant

11/5/2016 7:41 AM PDT

Henry Winkler told the most incredible story about his most prized possession ... a simple plant.

Henry and his perennially-hot wife Stacey were leaving LAX Friday when our photog asked him about his most treasured possession.

It's amazing ... one of his relatives escaped from Nazi Germany in a coffin with a spider plant inside.

Henry tells the story of how the plant is alive to this day ... and what it symbolizes.