Most magical practitioners understand the four elements-earth, air, fire, water-used in Western traditions. Where these elements meet and interact at their edges, however, they create other energies sometimes called "para-elemental" forces. At the intersection of water and earth, for example, we find the para-elemental energy of ice. You can influence a para-elemental force in much the same way you would work with one of the four elements. To make ice less slippery and more stable, you might coax it to become more like earth. To make it melt and get off your driveway, you could encourage it to move to the water side of its nature. As always, remember to be polite to your elements.