What is a Sun sign
Your Sun sign is the sign the Sun was in at the moment you were born. It speaks of your essence and of the energy you seek to express. The dates of each sign are approximate: the Sun changes sign at an exact minute that is different every year, so anyone born near the change needs a precise calculation.
Elements and modalities
The signs are organized into four elements. Fire (Aries, Leo, Sagittarius) brings enthusiasm and action. Earth (Taurus, Virgo, Capricorn) brings practicality and steadiness. Air (Gemini, Libra, Aquarius) brings ideas and exchange. Water (Cancer, Scorpio, Pisces) brings sensitivity and intuition. The modalities show the rhythm: cardinal signs initiate, fixed signs sustain and mutable signs adapt.