What's Going on Under the Ground?

We don't really talk much about what's going on beneath the ground, other than well sewer systems. Or in florida, they're starting to understand when it rains and the water doesn't go anywhere because there is so little drainage. Do you think of them as being separate worlds, or do you really see them as interconnected in some ways? No, i see the whole planet as interconnected. I mean, i've travelled through the plumbing of the planet. I've travelled even through the man made plumbing of the Planet,. exploring urban caves in storm water systems.