Take your athame and touch the water bowl with it. 

Say:

"I purify this water that it may be fit to dwell within this circle of power in the name of my lady and lord, I purify thee."

Next touch the athame to the salt.

Say:

"I purify this salt that it may be fit to dwell within this circle of power in the name of my lady and lord, I purify thee."

Next, at the North Candle, hold the athame at waist-level pointing outward.

Walk slowly clockwise around the circle (make sure that your feet are within the physically marked circle).

As you do this visualize a wall of energy forming (see the energy pouring forth from the athame) 

Say:

"Charge this circle by Your powers, wise ones! Only love shall dwell within this sacred place."

When you come back to the North point, lay the athame back on the altar.

Then take the wand and hold it up at the North quarter candle.

As you Say the following, visualize the spirit of Earth entering into the circle:

"I call upon thee, O Spirit of Earth, may you enter this circle and charge it with thy power."

Then do the same at the East-Air, South-Fire, and West-Water in that order.

Lay the wand back on the altar and stand before the altar.

Stop and let yourself feel the energy of the circle pulsating around you. Feel it's power.

(Note: The Circle is actually a sphere of power, so the energy of the Circle flows completely around you.)

Now your Circle is Cast.

You may now go on to invoking the Goddess and God and performing Rituals, Spells, and Divinations.

 Cutting a Doorway and Releasing the Circle

Upon occassion you might need to leave the circle before you're done with your ritual, you can do this by cutting a doorway.

Face Northeast and take your athame pointed downward, pierce the wall of energy and cut a doorway (big enough for you to go through) moving the athame in a counter-clockwise direction.

Visualize a doorway being made.

Then you can leave and come back when you are ready to finish.

When you return to the circle, enter through the doorway. Then take the athame and starting at the bottom point where you ended when you cut the door, redraw the doorway visualizing the energy filling the doorway and connecting with the rest of the circle.

When you have completed all of your Ritual, Spells, and Divinations; take the wand and hold it up at the North.

Say:

"O, Spirit of the Earth, I give thee thanks, go in peace."

Do the same for the East-Air, South-Fire, and West-Water in that order.

When you return to the North, hold the wand up for a moment, then place it back on the altar.

Next, take the athame and hold it at waist-level at the North point of the circle.

Pierce the wall of energy and as you walk slowly in a clock-wise direction, visualize the the energy being drawn back into the athame.

When you get back to the North point, the circle has been released.

Then it is time to put things away and clean up.