What is Your Favorite Led Zeppelin Song?

I love Led Zeppelin! A favorite was hard to choose  for me, so many of their songs are like my favorite. Bron yr aur is so pretty, it puts me in a trance when it comes  on, the world is far away  from  me  until  the  song  is over! Then I got to thinking and realized  I am curious  which song is your favorite  and why?

Autographed Led Zeppelin Collectibles and Memorabilia

 Works Cited

Led Zeppelin. “Bron-Yr-Aur.” Physical Graffiti (Deluxe Edition).Citations, Quotes & Annotations

(Led Zeppelin)
SqueezeMyLemonBabe. Led Zeppelin-Bron-Yr-Aur (NOT Stomp-LIVE). 19 Jan. 2008,