'Nothing Dies'

J.W. Dunne had a precognitive dream in 1902- he forsaw the volcanic eruption on Mount Pelee, Martinique- and the dream included an accurate death toll. Thus began his experiments with dream-states and time.
In 1927 he published his findings: All Time exists simutaneously- we experience it linearlly due to the limitations imposed upon us by our consciousness.When dreaming, we can occassionally stop this serial experience and perceive all eternity- that's how we are sometimes able to have knowledge of the future.

" The present and the past
Are but perhaps present in time future
And the future contains the past"

T.S. Eliot, 'Four Quarters'

Dunne derived a concept of physical immortality from his ideas- if the past co-exists with the future, and time is unitary and eternal, then we always exist.

The Australian Aboriginal concept of the 'Dreamtime' is very similiar.