Excerpts From: Cunningham, Scott. “Wicca: a guide for the solitary practitioner” and internet

Magic circle

The circle is usually nine feet in diameter, though any comfortable size is fine. The cardinal points are often marked with lit candles, or the ritual tools assigned to each point.

The pentacle, a bowl of salt, or earth may be placed to the north. This is the realm of earth, the stabilizing, fertile, and nourishing element that is the foundation of the other three.

The censer with smoldering incense is assigned to the east, the home of the intellectual element, air. Fresh flowers or stick incense can also be used. Air is the element of the mind, of communication, movement, divination, and ascetic spirituality.