Mercury in the sixth house denotes mental troubles, and danger of nervous breakdown. This position affects the health when the nativity shows much worry or anxiety, and the native is always liable to be over- strung or easily affected physically by his surroundings and environment. If afflicted by : Mars, there is danger of insanity through excitement or lack of control over the impulses : Saturn, the mind becomes impaired through over-anxiety. Uranus afflicting Mercury in the sixth rarely fails to unbalance the native, causes him to commit rash acts and sometimes denotes suicide.

Here's what it signifies to have Mercury in the eleventh house:

Mercury in the eleventh house denotes friends who appeal to the mind more than the feelings, also in a general sense those who are younger than the native ; but if afflicted, deceitful and false friends are shown. The sign Mercury occupies will show the nature of the friends. When in:

Mercury alone

When in its own sign, Gemini or Virgo, Mercury might theoretically be supposed to exhibit mind per se, uninfluenced by any special mode. In practice, however, this never happens; because the heavenly body with which it is in closest aspect has then to be taken as significant of the type.

Mercury is the planet nearest to the Sun. It rules Gemini and Virgo. Mercury is described as 'The messenger of the Gods'. It takes 88 days to rotate around the Sun. Apart from Venus, it is the only planet that rules two zodiac signs. Mercury is considered cold and dry. It is neither a masculine nor a feminine planet. Mercury absorbs the nature of the planet it associates with. Mercury rules communications of all forms including letters, emails and speeches. It rules thought and the spoken language.

Mercury Aspects Venus – Conjunct, Sextile, Trine and Square

Mercury Aspects Moon – Conjunct, Sextile, Trine and Square

There is much less continuity and firmness than with the Sun, but more plasticity, variety, change and adaptability. The mind responds more readily to new ideas; mental habits are less firmly fixed and ingrained; there is a tendency to change opinions, perhaps several times during the life, or even to entertain apparently contradictory ones. Imagination and intuition are increased, also mental sympathy and receptivity.

Mercury Aspects Saturn – Conjunct, Sextile, Trine and Square

Mercury Aspects Jupiter – Conjunct, Sextile, Trine and Square

Here the fire and passion of Mars are blended with the intellect. In undeveloped natures, this means that the reason is constantly in danger of being swept aside by storms of passion, desire, anger, prejudice, or self-will. In higher natures, the mind overcomes such impulses and utilises them as energies to subserve its own ends. It often shows as a restless activity of mind that is never satisfied and never at peace. There is liveliness, resource, wit, irony, sarcasm, ingenuity, and promptness.

Mercury Aspects Sun – Conjunct, Sextile, Trine and Square