The process probably takes place at all times, but the period especially favorable for it is during sleep.
During sleep, the body seems wholly at rest, and the mind is also inactive, if we except those involuntary mental wanderings which we call dreams.
During sleep, all voluntary activity ceases, the rapidity of the circulation and breathing diminishes, and the temperature of the body falls one or two degrees.
During waking life the astral body does its work within the physical body; during sleep it works on the latter from without.
During sleep, the astral body withdraws from the possibility of external observation and occult science must trace it in its hidden life, until it again takes possession of its physical and etheric bodies on waking.
Now, during sleep, no external impressions disturb the force of the astral body.
During sleep it is in a world resembling its own nature.
In isolated cases I have had children watched throughout the night, in order to clear up this point, and my conclusion was thus confirmed that children do at times play with the genital organs during sleep.
During sleep, sexually mature men and many sexually mature women have from time to time involuntary sexual orgasms;[42] these occur chiefly in persons without opportunities for sexual intercourse, who do not practise masturbation.
It is not uncommon for persons to recover, during sleep, the thread of ideas which they have lost during their waking hours.
These are the phenomena that occur during sleep--a class of mental phenomena of great consequence to be observed and analyzed in any study of psychology.
It is a matter of ordinary observation that in infants, during sleep, the volume of the brain becomes less, since the fontanelle is found to sink in.
Turning to the histories of sleep walkers, we find it recorded that, during sleep, they perform such feats as climbing slanting roofs or walking across dangerous narrow ledges and bridges.
These latter are not altogether abolished during sleep; their acuteness is simply lessened.
It is also shown that the condition of the brain during stupor is very different from that which exists during sleep.
In the first place, there is, undoubtedly, during sleep, a general torpor of the sensorium, which prevents the appreciation of the ordinary excitations made upon the organs of the special senses.
He states (what was true at the time he wrote) that the condition of the circulation through the brain, during sleep, is wholly unknown.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "during sleep" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
