Staring into a particular abyss...
I have a fondness for this particular sound after the beginning casm fades away, which I can tell is an authentic sample, because once the first pad starts kicking in, I had a flashback to 80s movies, where they have ambience like this post-character-trauma, the montages they show of a character's disbelief of an event, but moving ahead. Very good manipulations at work here. Haunting, eerie, but not overly so, there is a kind of reassurance in the background, like angels singing out notes.
John Cage would be pleased.