7:3.4

The discriminative operation of the spirit-gravity circuit might possibly be compared to the functions of the neural circuits in the material human body: Sensations travel inward over the neural paths; some are detained and responded to by the lower automatic spinal centers; others pass on to the less automatic but habit-trained centers of the lower brain, while the most important and vital incoming messages flash by these subordinate centers and are immediately registered in the highest levels of human consciousness.