Once music ceases to be ephemeral - always disappearing - and becomes instead material... it leaves the condition of traditional music and enters the condition of painting. It becomes a painting, existing as material in space, not immaterial in time. Brian Eno
The source of all the material comes from nothingness, illusion is working more on things you can prove. That's the principle, the essence of life, it is actually an illusion, not immaterial. That's worth pursuing. So illusion is not nothing. In a way, that is the truth. Ang Lee
There is no such thing as immaterial matter. All spirit is matter, but is more fine or pure, and can only be discerned by purer eyes. We cannot see it, but when our bodies are purified, we shall see that it is all matter. Joseph Smith, Jr.