I don't know the name or place that is the "somewhere else", but I recognise the times and places where the veil is thin.
You see it in newborns, just arrived, not fully here, still partly in that other place.
You see it in old men, sitting head tipped forward in their chair, not asleep, but not fully in this world. Waiting. Dipping their toes into the other place.
A fiery angel guards the borderline, policing it; deciding who is to be on this side, who on that side.
When we sleep, the veil is thin.
When we dream, the veil is thin.
Giving birth, the veil is thin.
And perhaps, if we sit still and quiet for long enough, the veil becomes thinner, and we get a glimpse of eternity.