Aparabtly, it's more difficult for Mercury to be completely unaspected in a chart coz it's orbit is never very far away from the Sun or Venus but in this person's chart, it is. So that would make it rather rare! Here's the aspect grid from their chart   Sun opposition Moon/Mars, conjunct Saturn, Square Neptune Moon conjunct Mars, opposition Saturn, Square Neptune Mercury NO major aspects, only a Sesquisquare or Troctile - 135 degrees, disharmonius to Pluto And a Semisquare or Octile - 45 degrees, also disharmonius to North Node. Solutions might be a communication book, or maybe writing love letters, or using the Bach Flower Essence/Remedy for the Mercury sign. More info here https://astromary.libsyn.com/episode-thirty-six-0   Names/degrees of minor aspects