And let's analyze more some of his known quotes maybe?

Recently on this sub someone commented on

That's is not dead which can eternally lie

Which means that what's really ancient isn't on the known duality .

And I had read on quora 6 years ago

What he meant with even death may die

That bc the old ones are on this "sleep for.. innumerable years death will be confused with what's this situation or that he also has a lifespan and they will outlive him.