More my take on it too, although there have been a few times in my life I've listened to some of those etudes to become a little more grounded in reality than wherever some deep grief had taken me. I ended up visualizing how to play some of the stuff while I was listening. That reminded me that even if I would never give Glass' etudes a shot on the piano, I was more capable in life than to just continue dissolving towards hopelessness or wherever I was going then in my vale of tears.
Bravo. Brilliant reply.