I believe that my entire body will break down into its atomic...

I believe that my entire body will break down into its atomic components and they will be dispersed into into the universe and may be at some point combined with other atomic components to create a new structure be it liquid, solid or gas. Living things such as animals, plants, have the structures to combine them to form like beings. As science progresses we identify the smaller and smaller components. Thus, we come from light and return to light is a general way to describe this process.
it depends on what we understand transition from the physical world into the next.