This is a vast subject that has just been touched upon.
The vesica piscis is a shape that is the intersection of two circles with the same radius, intersecting in such a way that the center of each circle lies on the perimeter of the other.
Age begins with a global rise in temperature, melting ice caps, a rise in sea levels causing flooding of low lying land, changes in weather patterns and sea currents, storms and heavier downpours coursing localized flooding.
The surface of the earth is covered by more water in this Age than in any other, the least amount of water coverage being around the winter solstice of this cycle as large amounts of water is held in vast ice caps that form around this time.
The Cross and Circle in the form of the Celtic Cross and Sun Wheel, can be found almost anywhere, these symbols date back several thousand years. This cycle is more of a cosmic clock, a measurement of time that reflects the changing seasons of the yearly cycle, but on a much larger scale.
The summer solstice of the cycle of Age's takes place in the year 2,000 AD, the beginning of the Age Aquarius.
One author claims that the total solar eclipse inspires images of the vesica piscis.