I have got a mail from Heikki Hattunen:
Hello! Thank you for your website. The Finnish translation on your site is a poetic one. I wish you could add one which is accurate word-by-word. This helped me understand the meaning of each word when preparing to sing the text.
This is by Juhani Koivisto (juhani.koivisto@operafin.fi). 
http://laura.siba.fi/xwiki/bin/view/Laura/View?id=1b10487dd21c5c66e9d29ea1af00a054&tr=1
Sincerely, Heikki Hattunen

Thank you very much, Heikki! I have added this translation to my site.