"There is no such thing as immaterial matter. All spirit is matter, but it 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."
Doctrine and Covenants 131:7-8
What a cool set of verses! All I know is, there is some rad chemistry going on there, and when I die, I'm going to ask God all about it.