Big concepts are hard to define: love, beauty, destiny, space, time. All the same, we spend our days living these concepts, thinking about them, having feelings about them, making choices related to them, fighting them, embracing them.

Take the notion of space, for instance. Everything you do is directly or indirectly related to space. Home, city, car, bus, elevator: you pass from space to space, and the passage is always meaningful in some way. If you don't think so, go spend three hours inside an elevator. Or move house overnight. No, no, no--space isn't to be trifled with!

What you call your "body," which technically is your "person," exists in space, occupies space, moves in space. Take a breath, and you move in space. Nod in agreement with something your lover says, and you move in space. Say "hello," and you move in space.

And what you call your "mind," which coincidentally is also called your "person," is a reaction to space and a creator of space. If in your mind you're a small person, so you become in space. And if in your mind you're always growing and changing, your space too will be flexible, lively, adaptable.

Who, when, where, how are you? These are all spatial questions. Inside and outside, the space is you, and you're the space.