There is downward energy flow = para-sympathetic nervous system(psns) = sleep(surrender, rest, relaxation)
And upward energy flow = sympathetic nervous system(sns) = doing (includes all attention, consciousness, thinking, moving)
These are 2 energy flow directions.
The self/ego (conventional) = sns (it is an identification with a certain activity of ‘doing’/verb).
When satisfied or exhausted – psns takes over and sleep happens.
Highest sns/Lowest psns = highest waking point(waking)
Low sns/High psns = dreaming
Highest psns/Lowest sns = deepest sleep point(deep sleep)
sns = pingala = male = doing = solar = order = anti-entropy = motivation = seeking = waking/dreaming = left brain
psns = ida = female = relaxing = moon = chaos = entropy = de-pression = assimilating = sleep = right brain
sushumna = harmonizing = transparent = transcendent pov = neither wake nor sleep = turiya = corpus callosum(brain)