Everyone has one

That's what my teacher said 16 years ago in my astronomy class regarding a zenith.  That is what stuck with me.  She pointed around the room at each of us: "You have one, and you have one..."  That was my initial attraction to the word.  The fact that I had something that no one could take away, like a shadow, made me hold onto that word.  

Initially, the concept for my own personal zenith was more literal.  I envisioned someone sitting on top of a hill, looking out over a city and looking up into the sky.  Over the years it morphed into an alternate definition of the word.