Frank R Molver (8 Sep 2011)
"David's UFO vision re power shut off"

http://www.fivedoves.com/letters/feb2009/davidd210.htm
 
I never read the whole thing before.
Thanks for re sending it
Do you think 21 could refer to this september with a comet striking the sun.
The time of darkness which causes many to seek the Lord makes sense.
Lots of Christians could use that to for their preparation decision.
However it could be a later date too.
Such as 21 years after the vision which would be 2016