Mercury Aspects Sun – Conjunct, Sextile, Trine and Square
This is seen when the planet is in Leo or is in close conjunction (say 5°) with the Sun. Strength and vitality are given to the mind as a whole rather than to any subdivision of it. Prompt response to new ideas does not occur so readily as with some of the combinations; but any habit of mind once established is likely to be held tenaciously, faithfully adhered to, not easily given up—never under compulsion, though perhaps under persuasion. Mental firmness, mental continuity, mental conservatism and mental energy are shown. New and unfamiliar modes of thought are apt to be rejected, misunderstood, or entirely overlooked simply because they are new; but if some relation to familiar methods is perceived they are slowly accepted and then very exhaustively examined and held. Some degree of mental dignity or pride is shown, some considerable appreciation of the sublime or the dramatic.
When this type is due to the close conjunction with the Sun, there is practically no danger of mental instability (unless congenital) and the mind remains active and powerful to extreme old age. When it arises from the position of Mercury in Leo, much depends upon aspect. At its best, the mind may exert much control over the body and influence it beneficially in illness.