It takes a motive force for those atoms to motivate.
How did those lifeless atoms motivate you to type that?
Drop some organic matter into acid and you get interaction resulting in an energy flow. For this energy flow to result in coherent actions in a proactive way, as you think you are doing involves quite a bit of interacting. Do you really believe your actions are the result of lifeless atoms bumping against each other? How can you be certain of it? Of yourself? We are talking about you, not everyone else.
It could be life was ordinary matter that got bored.
So....the motive force was boredom. lol