Symbolism took on many forms, and with Redon especially it's difficult to narrow down a single theme. Obviously Redon put a tremendous amount of thought into the colors of his works, which are wild and multiple, but also, as the piece below shows, often very mute and bizarre in subject. It should come as no surprise, after you spend a little time gazing into these paintings, that Expressionism and Surrealism both took significant direction from Symbolism. Dreamy, eh?
Head on a Stem
Joan of Arc