III. On Nutrition
When a man is awake, the astral body is within him; when he is asleep the astral body is outside. When he is awake and the astral body is working in the etheric body, fat is assimilated and absorbed all the time. Fat acts as a lubricant for the whole body. When a man is asleep and the astral body is outside him, fat is not assimilated but deposited. During waking life, fat acts as a constant lubricant; during sleep, fat is deposited. And both are necessary: deposited fat and lubricating fat.
Read this passage in another edition
DEoriginalENEnglish