But doesn't Aquarius precede Pisces, and Aries procedes?
some astro-theology
The Egyptians annually slew a sacred bull in atonement for the sins of the realm (Walker, Encyclopedia, p. 126).
The concept was that the blood of one god, or the symbol of that god, could cleanse the sins of many.
From this ritual arose the belief that blood had to be spilled if sins were to be forgiven.
However, after two thousand or so years the constellation that had rose at the spring equinox slipped from Taurus the Bull into Aries the Ram, heralding the birth of yet another new god, this time creating a theological storm in Egypt which ultimately led to the Exodus where Moses, as Akhenaton, would leave with a modified and simplified Monotheism in rejection of the complexity of the Osiris based faith of his time in light of Aries surplanting Taurus as the ruling constellation at the spring/vernal equinox.
Thus the Israelites where chastised by Moses when constructing the golden calf (symbolic of Taurus) when Moses was leading them away from such a bull centered faith to one centered on a ram/lamb (Aries as the new ruling constellation at the spring equinox).
They distinguished themselves from the bull-worshippers by using the blood of the lamb as a sacred fluid and symbol.
For Moses was leading his people, chosen with lamb's blood, to a re-new religion which was simpler than the one previous especially in light of the new age which had begun under the sign of Aries.
This was the new world age marked by Aries and thus a new god was required which he called "Aten" but known today as YHWH. Returning from Mount Sinai with the new laws of the new world order, Moses was angered that his chosen people were looking backwards to the bull (Golden Calf) instead of forward to the lamb.
History shows us that when the spring equinox moves into a new constellation, a new age and a new god emerge.
This god is either the son of the older god, or a new concept represented by a new god, which springs forth from the collective unconscious.
With the movement of the equinox from the stars of Taurus into the stars of Aries, which occurred in about 2,000 B.C.E., the movement was away from the sacred bull of the Egyptians and the god Horus who had many forms-one of which was the bull.
Pisces moved into the lead position in the Ring of Life around two thousand years ago, when the spring equinox heliacal rising slipped from Aries the Ram to Pisces the Fishes.
The coming of the age of Pisces, the new world order, was eagerly awaited, heralded in 6 B.C.E. by a triple conjunction of Saturn and Jupiter in Pisces.
In his fourth Eclogue, Virgil announced it would be the return of the golden age (De Santillana and von Dechend, Hamlet's Mill, p. 244). This conjunction was the astronomical highlight of the time, eagerly awaited and watched, and was later named, in Christian mythology, the Star of Bethlehem.
This association is more of an attempt by Christianity to claim Christ as the herald of the new age, rather than having any real basis in historical facts.
But the fish was an ancient symbol long before it was adopted by the new god.
It represented wisdom and was recognized as a female sign.
The symbol for the fish was derived from the yoni.
The Chinese Great Mother, called Kwan-yin, Yoni of Yonis, often appeared as a fish goddess (Walker, The Woman's Encyclopedia of Myths and Secrets, p. 313).
The Celts considered that eating fish would put new life in a womb (Green, Dictionary of Celtic Myth and Legends, p. 184).
Their hero, Tuan, was eaten by a fish and the fish in turn was eaten by the queen of Ireland who, in the fullness of time, gave birth to him.
Thus to eat of the salmon was also to grow in wisdom.
The Greeks incorporated the fish as a sacred symbol through Aphrodite, in her form as a fish goddess called Aphrodite Salacia (Walker, The Woman's Encyclopedia of Myths and Secrets, p. 314). She was depicted as a fertile mother nursing a child, and her temples always contained ponds of fish.
Her followers would eat fish on her holy day, which was Friday.
They were known as the fish eaters, and this custom was adopted by the Catholic Church who decreed that the eating of fish on a Friday, considered abstinence from meat, was a holy act required of its followers.
As the spring equinox moved into Pisces, the ram god sent his son, Christ, to save the world, and he became the god of fishes.
He was a fisherman fishing for men's souls.
His disciples were fishermen and one of his miracles, which proved him god, was the miracle of the loaves and fishes, where he was said to have fed five thousand on just a few fish and some bread.
The new religion adopted the sign of the Fish as their symbol.
The cross belonged to the pagans and was not incorporated into Christian symbolism until after the sixth century C.E. (Walker, The Woman's Encyclopedia of Myths and Secrets, p. 188).
The arrival of any new age heralds more than just a change of gods, for it represents a change in the way humans see the world.
One of the features of the Piscean new world order was that our concept of time and its cyclic nature became altered in our collective mind.
The new god now ruled forever, and thus everything was measured before or after his incarnation.
However, the concept of cycles, of there being an heir to every throne, that had been part of the myths of the Bull (Taurus) and the Ram (Aries), ended with Pisces.
For Christ had no children (according to christian doctrine) and the only way to acknowledge the whirlpool created by precession (the sinking of the constellations below the horizon at the vernal equinox where they were no longer visible before the rising of the sun) was to talk about a second coming - who would ostensibly be the new god of Aquarius.
For several centuries after Christ, Christians believed the second coming was immanent, forgetting that the cycle was several thousand years long.
On thing to remember is that these ages are not stand alone symbols.
To elaborate, the age of Pisces has its paired opposite which is Virgo.
Aquarius has as its opposite Leo.
Consider that when it was the age of Taurus, the adepts in Egypt had a scorpion tattooed on their foreheads, symbolizing scorpio, which was the opposite at that time.
This bears further thought.