She nods, as he explains, smiling. "I understand... and it's similar in a lot of ways to an arcane user's familiar, but, unlike yours, a psicrystal is actually a physical embodiment of our psionic energy. It's... hard to explain, but I can feel it, slowly, welling up inside me.It's like... imagine a calm, placid lake. When I draw upon my powers, I pull some of the water from that lake, draining it. The psicrystal... it feels like algae, growing along the edges of the lake. It stays there, even when I pull the water out, but there's too little for me to do anything with. When I get enough, though, I can... reach in, and scoop it up, instead of the water, and bring it into being." She laughs. "I know, I know, probably not the best explanation, but I hope that makes sense."