About Sun Signs
Western astrology uses the tropical zodiac, anchored to the seasons (Aries always begins at the spring equinox). Vedic astrology uses the sidereal zodiac, anchored to the actual fixed stars. Due to the precession of the equinoxes, the two have drifted apart by roughly 24° over millennia.
A person born in late March will typically be a Western Aries but a Vedic Pisces. Both systems are internally consistent โ they just measure from different reference points. In Jyotish, the Vedic Sun sign describes the soul's core purpose, while the Moon sign (Rashi) governs the mind and daily life.