Time slows as you listen to the gradual modulations in each sound and the slight dissonance as new sounds are layered on each other. It's beautiful and emotionally satisfying, like listening to wind in the trees and waves on the beach. And a bonus feature, I can't get cognitively intensive work done with music that has lyrics and catchy melodic hooks, so these albums are perfect at work, but also after work when I need to decompress.