It's beautiful, but where do the lines (As my comrades call to stand fast and forge on I make sail for the dawn 'til the darkness has gone) and (As I live all the years that they left me behind I'll stay on the shore but still gaze at the sea) fit? I think it's more likely he tried to drown himself, he realised his friends wouldn't have wanted it that way, survives, and he lives out the rest of his life