The closest most people come to sea life is on their plate. They don't know what they're missing ...
In no particular order:
No phones, no traffic, no noise, no ' non-diving' people, no one trying to sell me insurance, no email, no instant messaging, no blackberry's, no phone text messaging, no screaming kids, no nagging ex wife (no nagging lawyer from ex wife), no television, no radio, no newspapers, no Internet, no clients calling to complain, no brainless drive-through fast food people who can't get your order correct, no stoplights, no fedex deliveries, no siblings asking to borrow money, no more stupid aflac commercials .... no stress.
When you see your first Whale Shark gliding through the water graceful as can be (time stands still - it's a perfect moment in time), you won't have to ask why ... just when!
jcf
Regulator - $549; BCD - $639; trip to cozumel; $1759, first breaths underwater - priceless!