Gemini

The story of the Gemini is that of Castor and Pollux — the Dioscuri, "sons of Zeus." Their birth is extraordinary: their mother Leda, queen of Sparta, was visited on the same night by Zeus — transformed into a swan — and by her mortal husband King Tyndareus. From this double union came two eggs, from which the twins were born.

Pollux is the divine son of Zeus — immortal, gifted with prodigious strength and exceptional boxing talent. Castor, son of Tyndareus, is mortal, but an incomparable horseman and feared warrior. This fundamental asymmetry — one immortal, the other mortal — lies at the heart of their destiny.

Castor and Pollux took part in the greatest epics of their time. Companions of Jason on the quest for the Golden Fleece and members of the Calydonian boar hunt, they are the protectors of sailors — the St. Elmo's fires dancing on ships' masts during storms bear their names as a sign of salvation.

Fate caught up with them during a raid against their cousins Idas and Lynceus, over stolen cattle and broken betrothals. In the fight, Castor was mortally wounded by Idas. Pollux, inconsolable, refused the solitary immortality Zeus offered and begged his father: "I do not want to live without my brother."

Zeus, moved by this absolute brotherly love, granted the request in a unique arrangement: the two brothers would share immortality, alternating one day in the Underworld and one on Olympus. This is the cycle of duality inscribed in the zodiac: presence and absence, light and shadow, life and death following each other endlessly.

Zeus immortalized the Dioscuri by placing them among the stars. The two brightest stars of the constellation bear their names: Pollux (Beta Geminorum) is actually slightly brighter than Castor (Alpha Geminorum) — an irony of the sky placing the mortal son in the alpha position.

Castor is in fact a sextuple system — six stars orbiting together — a remarkable astronomical symbol of hidden complexity beneath a simple appearance. The Gemini constellation also hosts M35, one of the most beautiful open clusters in the winter sky, and the Eskimo Nebula.

Kurumada draws from the Dioscuri's duality the central concept of Saga of Gemini: a single being inhabited by two opposing personalities, light and darkness coexisting in the same body. Just as Castor and Pollux alternated between Olympus and the Underworld, Saga oscillates between absolute goodness and the darkest cruelty — two identities fighting over his soul.

The parallel is masterful: the mythological twins share immortality divided into two halves; Saga literally wears two opposing faces on the same skull, his left side representing his evil alter ego. The Galaxian Explosion, his ultimate technique, evokes the cosmic power of Zeus's sons.

The Gemini Cloth is also the only one in Saint Seiya to possess a unique trait: it can be worn by two knights simultaneously, a direct echo of the myth of the two brothers sharing a common existence. Kanon, Saga's evil twin, is living proof.