Find a place that has a comfortable feel for you, a spot that feels welcoming, preferably outdoors. It is good to lie on the grass, or lean against a tree or rock, but sit on something comfortable if that feels better. If it is more convenient to be indoors, try to fill your room with harmony and life. Have growing things about you. Burn pleasant incense or oil, maybe a candle or two if that pleases you. The main thing is to feel relaxed.
Don't try to clear your mind of thoughts: to try to do so consciously often has the opposite effect of making one tense. Let your mind range where it will. If you feel like looking around, look around! Notice the flowers, the sound of the birds, the wind through the leaves, the distant noise of traffic and people. Gradually your thoughts will quieten....
... I am so sorry to do this to you, but this post has been moved to my new website, Gypsy Magick and Lore, hosted at shirleytwofeathers.com, and can be found in its entirety here: Zee Energy Meditation
As you explore this site, you may find links to a "page not found" instead of something cool and magickal. For this I apologize. I am very working hard behind the scenes to restore those pages along with a link to their homes on my new website where they can be viewed in full.