Why Dive?

So why do people Scuba Dive? I am sure there are many reasons. I for one, love the underwater environment, the beauty and the adventure of exploring "another world". However, I don't think I would pursue Diving like I am now, if I wasn't diving with my Kids. It is the shared experience that makes it so important right now. I want to get my Master Diver Certification. My wife and I (believe it or not) are also toying with opening or running our own Dive Shop when I retire from the Navy in the next year or so. My sons opened that passion for me again and I am now in a place in my life that I can take advantage of it.

Why do you Dive?