Originally Posted by CosmicIron:
1. Hand rubbing has only short-term effect and should not be used extensively. It is fine as an emergency tool, but it's scope of effects is often limited. In fact, prolonged hand rubbing often results in feeling the physical body and waking up. It is not nearly as effective as floor crawling.

2.  Falling back is dangerous because it overlaps with the sleeping physical body, which almost certainly results in FAs for most users.

3.  Spinning has similar side effect as falling back, only marginally better. For scene change, it normally requires the user to close eyes, which is very dangerous.  Closing eyes easily result in FAs or loss of visuals.
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Amen.