What does it mean? It seems to have multiple meanings. e.g. 1)They didn't give sufficient thought to how the power would take a life of its own. They didn't foresee how the power would be passed on to the offspring, ... 2)Unfortunately misleading media reports like these take a life of their own, and start to become repeated as fact. 3)Do you find that your books kind of take a life of their own and you follow it ? Or do you try to stick to the original plan? 4)This idea stayed with me to the end of the piece, but as I reached the middle of the work, the music began to take a life of its own. ... Well, I'm really confused by them. It seems to me that this phrase has various meanings. so, what are they and does it have a literal meaning? I would really appreciate your help.