so r u actually looking for 4 answers here? or one answer that links them all

Three passages will lead you - if ur wanting just a name then i'm thinking it begins with "tri" but can't think of an enemy with a name like that
Past the lupine terror - maybe a neibelheim wolf? ir a midgar wolf even?
And the raptor's claws - got me!? maybe materia keeper?
To salvation or damnation - this line still has me stumped, i'm thinking along the lines of victory or defeat (game over) is this right?

ir ur lookin for 1 answer, i'm goin to say Mt. nibel. there are 3 paths around the materia keeper
but none of them actually lead off of the mountain, although u can get some decent stuff (maybe thats the salvation?)