Sun sextile Mercury transit promotes clear and quick thinking to improve all mental work and communications. Your mind is very active, and this is a most favorable time to express what is on your mind through writing or speaking. You can also absorb a lot of information, so studying is favored now.

Your thinking and goals are aligned, which enables you to focus on fine-tuning your objectives and creating clear plans and a strategy to achieve them. It is a good time to discuss these plans with others because you will receive valuable feedback and support. People are interested in what you say due to your enthusiasm, and you make good sense.

Full of Businesse, never quiet, employed upon every Occasion, and solicited by every one, without any great successe therein; Ecclesiasticall or School preferment; it poduceth in the Native admirable Conceptions, the Native is much busied in Writing, in Accompts, in buying Books, in buying or selling such things as belong to his Profession. [Christian Astrology, William Lilly, 1647, p.685.]

This interpretation for Sun sextile Mercury transit can also be read for a Solar Eclipse and New Moon sextile Mercury.