"I find to my mixed astonishment that I do dream, but I didn't know it"

Theodore Sturgeon's quote speaks with the power of the subconscious mind. He is revealing his surprise at finding that he does dream, despite the fact that he was uninformed of it. This recommends that the mind is capable of processing details and experiences even when we are not consciously knowledgeable about it. It is possible that Sturgeon is describing the idea that our dreams can be a reflection of our innermost thoughts and feelings, which we can get insight into our own mind by taking note of our dreams. This quote also speaks with the power of the imagination, as it implies that our dreams can be a source of imaginative inspiration. By acknowledging the power of his own subconscious mind, Sturgeon has the ability to take advantage of a source of imagination and insight that he was formerly unaware of.