Wind in the Trees

I was explaining the virtual theme and my project to a friend. When I was explaining the virtual realm I used an analogy that I think is worth posting.

The virtual realm is like the wind, you cant see it, and the only proof that it exists is its interaction and influence with our environment; for example, wind in the trees, how the leaves of a tree move in the wind. However, unlike the wind, the virtual world we can shape to create an influence we desire.