The knotwork itself would appear to be a purely decorative device. If at one time there were specific symbolic meanings attached, then these have been lost over the centuries. Intertwining shapes and lines, however, generally point toward ideas of connectedness and the harmonious convergence of opposites, male and female, fire and water, Heaven and Earth, for example. In addition, any sign that can be made without the pen leaving the paper tends to have strong protective associations, and knotwork, with its continual looping and spiraling, could have been used in this way, perhaps used for amulets and talismans.
Existing symbols—such as a heart, or birds and animals—are often rendered in Celtic knotwork. In this case, the form of the underlying shape carries the symbolic meaning.
The Celtic Knot that is square in form is a protective symbol, called a shield knot.
CHA CHAIn Haiti, there are certain seed pods called cha cha that are used to make rattles for ceremonial musicmaking in Voudon rituals. The rattle is called a cha cha, too, and the dance of the same name also comes from the name of the seedpod.
See also Asson.
form is used, whether it be the highly ornamented vessel of the Catholic Church or the simpler wooden cup favored by some pagan groups. The chalice itself is symbolic of water or of the Spirit, and is used as such in the suit of Cups in the Tarot, for example. The chalice is also a universal symbol of the feminine aspect because of its shape, its use as a vessel, and its link with water.
Eastern religions use a kind of bell, called a Drilbu, in the place of a chalice.