This is to draw in energy to use for spells if you need a little more magic.
First quiet your mind hold out your hand and imagine energy of any color flowing from the earth in to your hand and throwout your body.
Now you may fill empowered. this will help you with spells that take a lot of energy
Regularly using energy raising techniques can also increase your chances of improving your magical energy.
I just thought i should add this
As most all spiritual traditions teach, our bodies contain a large amount of energy. This can be called anything from chi, akasha, kai, juju, and? well, mojo. It's a raw and self-replenishing power that can be used to accomplish amazing things. What does this energy feel like? A simple way to get a vague idea is to rub the palm of your hands together for a good minute or so. You'll get a weird tingling sensation in your hands. This process seems to stir up in the energy in your hands, and is what magical energy sometimes feels like.