Backmasking in Led Zeppelin's 'Stairway to Heaven': Truth or Myth?

Is there a hidden message in Led Zeppelin's iconic "Stairway to Heaven"? Backmasking enthusiasts claim that playing the song backward reveals the chilling phrase, "Here's to my sweet Satan." Forward, it speaks of heaven; backward, it whispers of hell. Dive into the mysteries of backmasking, subliminal messages, and the controversies surrounding this legendary track. Is it mere coincidence, or is there a deeper, darker truth?