It's estimated that an adult human being grows from a single cell to about one-hundred billion cells through a process of fifty-billion mitotic divisions.
It's interesting to observe that "one-hundred-billion" is the scientific estimate of the number of stars in any given galaxy.
If we apply the Hermetic Axiom: "As above, so below" to this relationship we get the image of our solar system as a single atom in the "body" of a galactic entity.