The women nod, and begin showing him the basics of the protection spell. It's fairly simple, since the shield is already a potent item, which means it draws his magic eagerly, enhancing its own protection. It'll take several hours, but before long, he can fairly easily project a bubble from the shield, that surrounds him and protects him from attacks of pure energy, as well as shielding him from weather effects, keeping the air inside a comfortable temperature, even in the bitter cold or scorching heat. It won't do much of anything to block solid objects, though, so he'll still need to bring the shield to bear to deflect arrows or other weapons.