The melody sounds so much like the Forest Temple theme from Ocarina of Time, and that very probably is the reason why I love this song so much. Glad to know I'm not the only video game nerd who listens to Natasha. :)
@ ailene90: i agree, this is definitely sexual. i read that natasha suggested in an interview that its about the desire, the force that acts as a wizard and impels lovers into passionate action. the "wizard" is a metaphor for this passion, hence the "leader" of lovers.