Mercury retrograde is a maintenance period, perfect for revisiting everything one has not gotten to in the last several months. The planet Mercury is associated with the god mercury/ Hermes who is the 'god of the unexpected' and divine coincidences. Hermes/Mercury is the creator of new and sacred spaces.
Mercury retrograde is inevitable regardless of our best-laid plans; we might just get a taste of unexpected luck in a serendipitous coyote medicine type of way. Mercury makes us go to the picnic in the pouring rain and have a great time. It asks us to be fluid in our day and remain flexible, having as many backup plans as it takes. Whenever things seem 'stuck,' Mercury/Hermes introduces fluid movement laced with little chunks of surprise. Mercury retro is all about getting unstuck in thought deed and dreams forgotten.