Continuing from this post:
He begins with differentiating the dream ego from the dream self. The
former is embedded in the dream and the latter is aware that it is
dreaming. Our imaginations take over in dreaming, the same imaginations
we use during waking when we imagine things past or anticipate things
future. When dreaming is lucid we have some degree of conscious control
over the course of the dream. To see how it though is different from
waking consciousness he proceeds through the stages of sleep.
The hypnagogic state is the transition between waking and sleep. This
state can also occur while awake or in meditation. This state if
accompanied by seemingly random images and sensory stimuli, often from
past experiences and sometimes from pure imaginary sources. Synesthesia
is common. I know from experience this is the first phase of my sitting
meditation, wild and random mind meanderings. And in watching myself go
to sleep I know this is the sign I've entered this state on the verge of
dreaming sleep. Further into this state the waking ego boundary loosens
and we are immersed in the imagery. To manipulate this state as in
meditation requires a delicate balance between being receptive enough to
allow the image intensity and vividness, yet focused enough to
consciously reflect on them. Otherwise we awaken or fall asleep. When I
want to sleep I welcome the latter. When I meditate, I maintain the
balance so that I can enter a deeper, slower and more content-free
state. Thompson gives a few methods for consciously manipulating this
state.
Relating the stages of sleep to brain waves, in stage one non-REM
sleep the brain waves slow to alpha, then mixed with theta. This is the
hypnagogic state. Stage 2 sleep spindles and K-complexes arise, rapid
higher hertz bursts preceded by brief high-voltage waves. Stage 3 is a
mixture of spindles and high-amplitude delta waves. Stage 4 settles into
more than 50% delta waves. This process takes about a half hour when we
ascend back up to stage 2, but instead of going on to stage 1 we enter
REM sleep with wave readings akin to waking. More advanced technology,
along with more advanced awareness practitioners, has further refined
this broad schema.
To be continued.
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