Your core self is expressed through usefulness and craft.
Mercury sextile your Sun
Mercury's sextile to your Sun lasts two days or thereabouts; while it does, your mind is quick and your confidence easy to find. Mercury is the mind putting itself into words; the Sun is the person behind them.
Uranus square your Sun
Uranus squares your Sun for nearly two years, usually hitting the exact square three times while it advances, pauses, retreats and advances again. Your Sun is the part that answers to your name, the self you stand behind and the aim you steer by; Uranus is the sudden break and the impatience with whatever has gone stale.
Sun-sign horoscopes read the sky against your Sun. For the most accurate read, also read your rising sign — if you know it, that version is usually the truer story.