Bosom

And the LORD said furthermore unto him, Put now thine hand into thy bosom. And he put his hand into his bosom: and when he took it out, behold, his hand was leprous as snow.

(King James Bible, Exodus 4:6 )

So I was keen on finding out what is the historical and/or cultural significance of "bosom". So I went to the trusted folks (any thing that the cat dragged in - with an internet connection ) at Wikipedia. And this is their entry on "bosom" - warning nudity (that's a warning, not encouragement). It basically just defined them as "breasts" as well as shows a few pictures of the female variety. So, I tried Wiktionary. The same definition, but, gives you the translation into several languages.

Who'da thunk that the answer (or at least the short answer) is at dictionary.com:

bos·om (bzm, bzm)
n.

1. 1. The chest of a human: He held the sleepy child to his bosom.
   2. A woman's breast or breasts.
2. The part of a garment covering the chest or breasts.
3. The security and closeness likened to being held in a warm familial embrace: We welcomed the stranger into the bosom of our family.
4. The chest considered as the source of emotion.

You may want to refer to the original link for more information - which there is. Enjoy.