I think these lyrics are deeper than most of what you folks are saying. These are about how we start out innocent and fearless when we're young. As we get older, we learn about and reap consequences. We make decisions easily, not knowing of the consequences, not realizing how much the long-term consequences and effects will eventually hurt us in life. As we suffer the effects of our choices, we should learn to control ourselves -- our anger, our hurt -- to learn from our poor choices and mistakes, and to "take only what we need from it." Everything seems "warm" and innocent (baby) in the beginning, but that warm water gets colder as we get older. All we can do is learn as we get older because everything is "haunted" and grows more haunted. A baby born is destined to be haunted in this life.