Via Astrologyzone.com:

Any retrograde planet is a planet that’s sleeping. All living things need rest, and planets do too, so you’ll find that all planets go retrograde. The Sun and moon don’t, but those heavenly bodies aren’t planets, of course. A retrograde planet will not emit its best energy, so while it is out of phase, we are left to our own devices and do the best we can without that planet’s help.

Mercury rules communication, commerce, thinking, perception, negotiation, and contracts, as well as electronics and all moving parts. The world spins on the very areas in life that Mercury rules. We need Mercury to be in top shape because if it is not, human interaction with the performance of computers and machines tend to go haywire, as counter-intuitive as that statement may sound.

For some, it is a Fantastic and Terrible movie.

In times of the king
It is important that we sing

We mask our words
Are unsure of our tactics

Sleeping in our beds
Forever in our heads

Never trusting our dreams
Awakened only by our fears