Yep, it makes sense to use ram for it's calming effect because that verbal root (dhaatu) means, amongst other stuff, to rest:
1 ram [...] , pp. {rate} (q.v.) tr. stop, fix, settle; [[-,]] gladden,
delight, enjoy (esp. carnally); intr. stop, rest, stay gladly with
rAma mf(%{A4})n. (prob. `" causing rest "' , and in most meanings fr. %{ram})
BTW, Bible in Finnish happens to be Raamattu, a "Finnished" form from Greek
Grammata, written...
