if you can find a distinction between where molecules end and life begins, you should be able to understand it.
a cell can be seen as just molecules working together and interacting. but the molecules have to obey the laws of physics and chemistry. we are made up of cells. we are a cell of cells. we are multicellular organisms.
the earth can be seen as a living thing (not in the gay hippie way). but we (animals) are like the living cells of it. roads are the veins we built, communication networks are the nervous system etc (terrorists are cancer

, we cant cure it because they are bad cells that dont get identified by the earth as foreign. and you cant kill them without killing good cells in the process)
IF a life force can be traced back to atoms. then whats to say a star isnt a living thing? it has complex chemical reactions keeping it "alive" and eventually dies. just imagine what one of those things could tell you about the universe.
all this makes so much sense in my own head but i have trouble explaining it sometimes. i think i might have to write a thesis on it