pipe mutt message into vim

[Rory Campbell-Lange <rory@campbell-lange.net>]

I'm unclear about pipes! I frequently wish to pipe the contents of a
message I'm reading in mutt into vim, edit the contents to a saved file
and then return to mutt.

I have simplistically tried from mutt "|" then "vim" from the mutt shell
prompt, which doesnt work. I guess I want to do the equivalent of 

cat < /tmp/xyz

but where xyz is the contents of the current message.

Before you ask, I do know how to save mutt messages!
-- 
Rory Campbell-Lange 
<rory@campbell-lange.net>
<www.campbell-lange.net>