Oh, the moans you hear from people about their email accounts. “I have 50 gajillion messages in my inbox … and that’s just from today!” But that doesn’t compare with the moans I illicit from colleagues when I tell them that my inbox is empty.
“I could never do that,” someone—maybe you—will inevitably complain. I understand, as I used to say the same thing. However, I was wrong, and so are you. The Zen part? This is something that you shouldn’t bother to try to “understand.” Just do it and learn that the most useful email is that which isn’t there.