In that little book, "Psychoanalysis and the Unconscious," I tried rather wistfully to convince you, dear reader, that you had a solar plexus and a lumbar ganglion and a few other things. I don't know why I took the trouble. If a fellow doesn't believe he's got a nose, the best way to convince him is gently to waft a little pepper into his nostrils. And there was I painting my own nose purple, and wistfully inviting you to look and believe. No more, though. You've got first and foremost a solar plexus, dear reader; and the solar plexus is a great nerve center which lies behind your stomach. I can't be accused of impropriety or untruth, because any book of science or medicine which deals with the nerve-system of the human body will show it to you quite plainly. So don't wriggle or try to look spiritual. Because, willy-nilly, you've got a solar plexus, dear reader, among other things. I'm writing a good sound science book, which there's no gainsaying. Now, your solar plexus, most gentle of readers, is where you are you. It is your first and greatest and deepest center of consciousness. If you want to know _how_ conscious and _when_ conscious, I must refer you to that little book, "Psychoanalysis and the Unconscious." At your solar plexus you are primarily conscious: there, behind you stomach. There you have the profound and pristine conscious awareness that you are you. Don't say you haven't. I know you have. You might as well try to deny the nose on your face. There is your first and deepest seat of awareness. There you are triumphantly aware of your own individual existence in the universe. Absolutely there is the keep and central stronghold of your triumphantly-conscious self. There you _are_, and you know it. So stick out your tummy gaily, my dear, with a _Me voila_. With a _Here I am!_ With an _Ecco mi!_ With a _Da bin ich!_ There you are, dearie. But not only a triumphant awareness that _There you are_. An exultant awareness also that outside this quiet gate, this navel, lies a whole universe on which you can lay tribute. Aha--at birth you closed the central gate for ever. Too dangerous to leave it open. Too near the quick. But there are other gates. There are eyes and mouths and ears and nostrils, besides the two lower gates of the passionate body, and the closed but not locked gates of the breasts. Many gates. And besides the actual gates, the marvelous wireless communication between the great center and the surrounding or contiguous world. Authorized science tells you that this first great plexus, this all-potent nerve-center of consciousness and dynamic life-activity is a sympathetic center. From the solar plexus as from your castle-keep you look around and see the fair lands smiling, the corn and fruit and cattle of your increase, the cottages of your dependents and the halls of your beloveds. From the solar plexus you know that all the world is yours, and all is goodly.