The Ouroboros

Does anyone know of any significance involving the Ouroboros? (The Ouroboros is commonly known as “The snake eating it’s own tail.”)

Every once in a while I’ll see a bunch of references to it that all happen at around the same time. And I mean scary coincidences, like 3 unrelated mentionings within a single day.

All that i can see when i look at it is something doomed to destroy itself.

It’s devouring itself.

I know it goes back to ancient Egypt.
I always knew it as ‘snake eating it’s self’ though but it always got the point across.
very ancient symbol though, primal situation to be in,
that snake.

what has it stood for over time I wonder?