Circle Casting with NOTHING

Okay, we are going to pretend you have NOTHING, no space, no tools of any kind, nothing but your body and a small spot just big enough for you to stand, turn, and sit down in.

1. Find north, it doesn't have to be EXACT north, just as long as you are pointing in the general right direction. 
2. Some start casting in the north, while others begin their circle facing east. Pick the one that is best for you, since we are using NOTHING but our mind and body you will need to draw this circle three times. 
3. Hold out the index finger of your dominant hand and draw a circle in the air (be sure to go Desoil (clockwise, which is turning to the right)). Each time you draw the circle imagine a clear but powerful wall expanding out from your finger, then after each time it becomes thicker. (You can say something if you like, as long as you can hold the visual while doing so)
4. Face each direction, and kindly invite the elements of that direction into your circle. (North - Earth, East - Air, South - Fire, West - Water). Then invite the god and goddess into your circle.
   (Some include spirit in their summoning, while others do not. If you wish to include Spirit as an element, it is located in the center of the circle and summoned last.)
5. Do Whatever spell or ritual it is that you cast the circle for. You may also meditate, or go on a visual journey within this circle.
6. Once finished, bid farewell to the god and goddess and be sure to thank them for their company. Then dismiss each element in reverse order from when you summoned it. Again be sure to thank them for their company. 
7. Now it is time to open the circle. Draw your finger through the circle (going Widdershins (counter-clockwise which is turning to the left)). Unlike before you only have to do this once, as you draw your finger be sure to state that the circle is open, not broken. (Word it however you please).

You have now successfully cast a circle using nothing but your mind and your body. How did it feel? Did you notice any difference than when you use tools (if you have them)? I didn't think so. The only tool a practitioner needs is the mind, without it casting isn't possible.