I wasn't born with it.
I think it found me when I was young, crept into my ear while I was sleeping. I'm not sure what it looks like, if it prefers he or she or has a name all its own. All I know is that it whispers to me, speak to me of all the places I should go. All the places I want to go.
I don't know how such a small thing can have such worldly knowledge. Maybe it is immortal, ancient as time itself, travelling the world with us mortal creatures. Maybe it sneaks silently from my head at night, when it knows I won't be listening, and reads the travel books that line my walls. However it does it, it never fails to inspire me.
I wasn't born with it, and I don't even know it's name.
But I hope it never leaves me.