Not too great a tab, but I have the general chord progression down. It goes from
verse to chorus during the whole song

verse chord progression:
------------------------

Am (x02210@1)         G (320003@1)            C (x32010@1)   When the dark wood fell before me

Am (x02210@1)            G (320003@1)        F (133211@1)   And all the paths were overgrown

Am (x02210@1)         G (320003@1)              C (x32010@1)    
    When the priests of pride say

    there is no other way

Am (x02210@1)            G (320003@1)        F (133211@1)   I tilled the sorrows of stone


Chorus chord progression:
-------------------------

Dm (xx0231@1)          Am (x02210@1)        G (320003@1)   Cast your eyes on the ocean

F (133211@1)           G (320003@1)         Am (x02210@1)   Cast your soul to the sea

Dm (xx0231@1)         Am (x02210@1)            G (320003@1)   When the dark night seems endless

Am (x02210@1)       G (320003@1)      F (133211@1)   Please remember me


Bridge:
-------
(twice the length for each chord)
Am (x02210@1)  G (320003@1) F (133211@1) G (320003@1)