Bathe. Take a long bath, getting your skin completely clean and soaking the tension of our your muscles. Dress appropriately. If you have robes or other special garb for doing magic, put that on. Otherwise pick simple but formal clothes that feel light, comfortable and clean. You are asking the divine forces for a favor, so try to dress with a certain amount of reverence. If there won’t be anyone around, some wiccans swear by performing magic in the nude. Meditate until your mind is clear. Do some basic deep breathing to improve your focus and discard distracting desires. Anoint yourself with the proper oils. Different essential oils can be used for different purposes, so if you like find one or more that seem appropriate and dab a little with your fingers on your forehead, and perhaps your hands, hair, face and chest as well.
When the space is clean physically, purify it spiritually by burning some incense, sprinkling some salt water or holy water, or playing a few clear notes on a musical instrument.
Draw a circle big enough to sit in, or a five-pointed-star within a circle (called a pentacle). You can draw it physically or just trace it in the air with your finger or a wand. Visualize protective energy coming out of your arm as you draw, sealing off the circle from in a bubble of light. You can mark the cardinal points on the circle or the points of the star with candles, stones, or some other set of significant objects. Create a small raised platform on which to place a figurine of a deity or some other symbolic representation of the divine. It doesn’t have to be complicated: a stack of books will do, if you treat it reverently. Consider adding candles, crystals, an incense stand, or a couple objects close to you spiritually, such as a small heirloom or your book of spells.
Note the phase of the moon when you do this. Use the waxing moon if you wish to gain something and the waning moon if you wish to get rid of something
Meaningful phrases and words may be drawn into the sand as well, as long as they are in the triangle. Alternatively, you can write these directly onto the shell.