A magic circle is circle or sphere of space marked out by practitioners of many branches of ritual magic, either to contain energy and form a sacred space, or as a form of magical protection, or both. It may be marked physically, drawn in salt or chalk, for example, or merely visualised. Its spiritual significance is similar to that of mandala and yantra in some Eastern religions.
Traditionally, circles have been used by ritual magicians to form a protective barrier between themselves and what they summoned. Nowadays, circles often have the more benign function of containing and concentrating the energy raised during a ritual. In Wicca the common technique for raising such energy within the circle is by means of a cone of power. Circles can also be used as barriers for non-magical work such as meditation....read more...