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Sleep can be divided into five phases, or stages. The first four are numbered 1-4, and the last one is REM. Natural sleep, one that does not involve the use of drugs of any kind, has all five stages. The stage four part of sleep is when your body repairs itself and can only be reached through natural sleep. Also, your muscles become paralyzed during REM sleep.
The main thing is in sleep one becomes unaware. Thoughts happen, dreams happen, images pass through the mind, but for the most part, there is no awareness of these things.
When meditating, these things happen, but there is a witness, a watcher on the hill: there is awareness of what is happening in the body-mind.
Meditation is great for keeping calm during waking hours, but is not a substitute for 7-8 hours of good natural sleep. Though meditation may help someone calm their mind so they get a better nights sleep, it is only natural sleep that has a deep delta sleep as in stage four non-REM sleep.
What else can I help you with?
How do you make our souls leave our physical bodies?
it is said it can happen during meditation, through astral projection.
What does complementary mean when your talking about probability?
Two events A and B or complementary if A and B are "opposites". If A happens it means that B cannot happen and if B happens it means that A cannot happen.
What happens if you grow hair on your nails?
This literally cannot happen.
Does the Brazilian carnival happen during the night?
The Brazilian carnival doesn't happen during the night, it happens during the Day time or the morning and it can some time happen during the night but occasinaly it happens during the morning and day time :)
When does snow happen?
It happens during winter
When can't bushfires happen?
Bushfires cannot happen during flooding rains.
What happens during an volcano?
people died when they happen
How does a landslide or rockslide happen?
It usually happens after or during an earthquake.
What will happen if you produce sperms during puberty?
Nothing , that's what happens during puberty
Does DNA replication happen before or during Meiosis?
It happens during interphase of the cell cycle.
What happens in a temple?
Generally, a variety of things happen in a Buddhist temple. Commonly, monks live there. Religious services, such as reciting teachings of the Buddha, happen there. Meditation is sometimes practiced. Food is offered to the monks at meal times.
What happens when an immovable object is struck by an unstoppable force?
Since these are extremes that cannot be acheived due to the laws of physics, it cannot happen. However, If it could happen, I suspect a paradox would occur.
