Pisces is not fucking around
Mercury: rules Gemini & Virgo, communication, siblings, short distance travel
Mercury Retrograde: efficiency of communication/travel are much slower/weaker, double check your mistakes, avoid signing contracts/starting new jobs
Neptune: rules Pisces, secrets, mysteries, rhythm
Pisces: water sign, mutable, oneness w/ universe, ocean
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2013: While Sun & Mercury were both in Pisces during Mercury Retrograde there were a few cruise ship mishaps - most notable Carnival Dream "poop cruise"; USPS decides to end Saturday service & argues about decision entire MR.
Lots of planetary energy concentrated in Pisces during an intense MR. Communication & travel awry relating to Pisces: ocean (cruise ships), oneness (USPS connects all of us).
2014: After Mercury Retrograde ends w/ Sun & Mercury in Pisces, Malaysia Airlines Flight 370 goes missing on 3/8.
Although MR is officially over, we're not 100% out of the clear of confusion, as it's in its shadow phase until today, 3/20. Effects of MR are not heightened, but still prevalent during shadow phase.
Something like an airplane disappearing while we have so much energy focused in Pisces does not look good in terms of finding it. Not to say it's lost forever, but Neptune is all about mystery & hidden secrets. It's most likely in the ocean and could be a notable mystery for a while.