After I read the lyrics,I illustrate and dream the story in my mind.For example at the beginning of the songs I dream that the spirit in story finds his body,posseses it and then just like the zombies in old movies,punches the ground from under and gets out of his coffin.Then runs in haste to find his lover to see her one more time because his time is running low.And when the growls close to the ending is playing,I think that his spirit is forced to leave the body and return to the heaven and he is struggling to keep his link to the world and growling because he doesnt want to go ( like saying NOOOOOOOOOO). When I listen to songs like this they feel better.I think Opeth is a artist and they actually make your brain illustrate what you listen to.And also,I sometimes get the feeling that an angel and devil is telling a story in any of the songs.( death growl,clean vocal contrast ). This makes me love opeth.