I'll settle this once and for all. Music and lyrics MUST be comprehended OBJECTIVELY. A 3 year old, college professor, and drugged up hippie will have VERY different perceptions of a piece of art. The best way to know what the art's purpose is is to ask the CREATOR. Robert Plant admitted the words are just there to go along with the music. Because art is a reflection of nature, art must be ordered and structured like nature, and with purpose. If it's just something made up on the spot, it's not art, but ENTERTAINMENT.
That's why the lyrics of Stairway are not meaningful at all. They are just there to go with the music, and there is no point to them at all. The song would have been fine without them. Plant isn't that great of a singer anyway.
And abstract expressionists can STFU. Too many philosophers have debunked the random patterns they call "art". Let's lay these mediocre lyrics to rest here. Why couldn't Achilles Last Stand be remembered as Zeppelin's finest moment?