The symbol for the astrological sign of Aquarius is the ancient Egyptian hieroglyph for water.
The pictorial image is a man carrying a jar of water.
The Egyptian hieroglyph for a jar is ab which means the heart. The spiritual wisdom, which the water in the jar is said to be, is what the Egyptians called the intelligence of the heart. This was the objective of all their religion.
The intelligence of the heart is all about love.
Aquarius is an air sign. It is also a human sign. So the secret of the enigmatic symbols is the development of the human heart through the intelligence of the heart which is love.