"So Magica is... everywhere right? In the air? All over the place? It just collects some places more than others?"
"Sure, yeah. It constantly replenishes and infuses living things more than non living things. Humans tend to be very Magica dense, although they can't do much with the Magica in their bodies, unlike Demons. It does seems to passively help them though. Not as much as Demons of course, but our Magica has been altered by our bodies and has a different "feel" to it."
"Mhmhm. So could we like, get full from Magica if we chewed rocks or something? Or breathed in a lot of air?"
"...No. I think you'd burn more Magica from your body processing rocks than you would from eating them. I don't think it would kill you, but..."
"Too bad magical beasts taste so bad. I bet that could be a good alternative."
"Oh yeah, absolutely awful. I'd rather turn into an imp that survive on that. Also why would you even want an alternative? Humans are delicious!"
"True... true..."
-An idle conversation between the Demon Cezar and the Demon Scrambles, overheard by an Imp