Humans are a source of magic; you get that, right?
Magic’s our lifeforce, the energy we draw from the Veil to keep our bodies alive. Whatever magic we don’t use disburses into the world similarly to the way carbon dioxide gets expelled from our lungs.
It’s why pixies hang around us like sucker fish on sharks, hoping for our magic scraps.
Be nice to your pixie. If you listen carefully they’ll steer you clear of succubi, mermaids, dryads, and other magical creatures who won’t settle for scraps.
They won’t be much help if you stumble under the foot of a dragon or leviathan though.