“Every appearance in nature corresponds to some state of the mind, and that state of the mind can only be described by presenting that natural appearance as its picture. An enraged man is a lion, a cunning man is a fox, a firm man is a rock, a learned man is a torch. A lamb is innocence; a snake is subtle spite; flowers express to us the delicate affections. Light and darkness are our familiar expression for knowledge and ignorance; and heat for love. Visible distance behind and before us, is respectively our image of memory and hope.”

So I wonder what the meaning of mushrooms is."

Read the full blog entry here along with some of his lovely photos of mushrooms:
http://frankwinters.wordpress.com/2007/06/13/the-meaning-of-mushrooms/

I like the first photo -- the 'shrooms look like a couple Hobbit homes nestled in a wee forest.
There's also another set that looks like they reside on another planet. Nifty!