The Celtic spiral design represents the natural form of growth. In most cultures, past and present, it is a symbol of eternal life. The whorls represent the continuous creation and dissolution of the universe; the passages between the spirals symbolize the divisions between life, death and rebirth. A Celtic spiral that moves to the right symbolizes the sun and victory. Celtic Spirals also represent the dance of war for the Scottish Highlands.
The interlacing of continuous lines and spirals symbolizes the connection between the physical and spiritual worlds. The never ending characteristic of of spirals and loops symbolizes a never ending cycle of life, death and rebirth.
Triple Spiral: symbol of the Triple goddess (maiden, mother, crone) also, waxing waning and full moon (in ancient times).
Double Spiral
The equinoxes, when day and night are equal. Sign of balance.
Clockwise Spiral
Represents the sun. Growth, expansion, and cosmic energy depending on which culture is used.