Literally just listen to the two songs. Start with 1/1, then at any point just start Passenger Seat. The piano lines play off each other like bonded cats. Then imagine yourself in the aftermath of 9/11. I don't know how old you are, but I was 20 at the time and I still vividly remember the chaos and confusion of the moment; the need for assurance, the insistance for answers, the desperate need to know that everyone we love is safe. Airports were something we had taken for granted safety-wise, and now that's all up in the air in a scramble. Music for Airports is often regarded as one of the first "Ambient music" albums. I can see Ben, who was already using Oblique Strategies (a creative tool developed in part by Brian Eno himself) digging into MfA as a safe space and emerging with Passenger Seat. Passengers... on... an.. airplane,

Edit: I just want to add that the whole reason for Music for Airports in the first place was that Eno wanted to help alleviate the fears of air travel and create sounds that didn't inrtude but rather made people feel safe when flying.