"To love at all is to be vulnerable. Love anything, and your heart will certainly be wrung and possibly broken. If you want to make sure of keeping it intact, you must give your heart to no one, not even to an animal. Wrap it carefully round with hobbies and little luxuries; avoid all entanglements; lock it up safe in the casket or coffin of your selfishness. But in that casket - safe, dark, motionless, airless–it will change. It will not be broken; it will become unbreakable, impenetrable, irredeemable."
This quote orginally from CS Lewis was stolen from my colleague Peter Boumgarden's Blog, The Captured Perspective. In that article, Peter mainly focuses on the relationship between language (what we speak) and reality (what we perceive), using love and religion as two concrete examples. Worth a read!