“Seth material” search engine (Jane Roberts)

Some waking states, of course, come very close to sleep states. These blend one into the other so that the rhythm often goes unnoticed. These gradations of consciousness are accompanied by changes in the physical organism. In the more sluggish periods of waking consciousness there is a lack of concentration, a cutting off of stimuli to varying degrees, an increase in accidents, and generally a lower body tone.

Now: This extended period, given to waking consciousness without rest periods, builds up chemicals in the blood that are discharged in sleep. But in the meantime they make the body sluggish and retard conscious concentration. The long sleep period to which you are accustomed then does become necessary. A vicious circle then is formed. This forces overstimulations during the night, increasing the body’s work, making it perform continuously over an extended time physical purifications that ideally would be taken care of in briefer periods of rest. The ego feels threatened by the extended “leave of absence” it must take, becomes wary of sleep, and sets up barriers against the dream state. Many of these are highly artificial.