I first learned about this concept from a fairly philosophical Marine officer who was serving in Ramadi in '05, while he was there. He shared the concept with me, and it's a great one -- one I need to return to more frequently for that all-important and oh-so-easy-to-lose balance in life.
The quote:
"There is an Indian belief that everyone is a house of four rooms: a physical, a mental, an emotional and a spiritual room. Most of us tend to live in one room most of the time, but unless we go into every room every day, even if only to keep it aired, we are not complete." -- Rumer Godden, "House of Four Rooms."