What you experience as "reality," including your physical body and aging, is shaped by your habits of perception.
When people read erotic symbols into my painting, they're really thinking about their own affairs.
When you can't see you become very timid about space and moving. You become less aggressive and less tenacious. Lots of things that shouldn't be affected by vision really are. And you don't even know what they are until they become unstuck.
Environments are the messages before the message.
Put a colour upon a canvas - it not only colours with that colour the part of the canvas to which the colour has been applied, but it also colours the surrounding space with the complementary.
If I see everything in gray, and in gray all the colors which I experience and which I would like to reproduce, then why should I use any other color?
Seeing sound, the high order stuff that's not audible still affects how everything else behaves. There might be a visual metaphor for that somewhere.
What you see with your eyes when you're making music is going to have a profound effect on what you hear.