thrown off its balance by some material obstruction. Now the heart swings left and right in the pure circuit of the earth’s polarity. Hinder this swing, force the heart over to the left, by inflation of gas from the stomach or by dead pressure upon the blood and nerves from any obstruction, and you get the sensation of being unable to lift the feet from earth: a gasping sensation. Or force the heart to over-balance towards the right, and you get the sensation of flying or of falling. The heart telegraphs its distress to the mind, and wakes us. The wakeful soul at once begins to deal with the obstruction, which was too much for the mechanical night-circuits. The same holds good of dreams of imprisonment, or of creeping through narrow passages. They are direct transfers from the squeezing of the blood through constricted arteries or heart chambers.