However, use of the Hemi-sync tapes at this point may be less a factor in actually achieving the out-of-body state than it is a matter of focusing the brain enough so that a residual memory of having naturally achieved an out-of-body state is carried into the waking state.
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Octagon (Wikipedia)In geometry, an octagon (from the Greek ὀκτάγωνον oktágōnon, “eight angles”) is an eight-sided polygon or 8-gon.