You don't need to have a Master to apply a little common sense and thinking to things, y'know. Entire worlds have hearts and thus are alive. What made you think keyblades of ANY kind don't have their own heart, and thus, aren't alive? What do you think they connect to their wielders with, spit and a prayer?

[It might be useful to know but Vanitas really needs to work on his method of delivering that information.]

A Master doesn't do all your thinking for you. He's just there to beat you into shape and make you pay for it if you screw up, the rest is up to you. You're supposed to figure it out on your own. Anything else you need me to spell out for you while I'm being generous?