The final episode of the cult series Breaking Bad is titled 'Felina' — and it’s not just a beautiful word that happens to sound like 'finale.' Vince Gilligan packed multiple layers of meaning into it, which only those who closely followed Walter White’s story would recognize.
Musical Felina
The title contains three distinct references — from music to chemistry. First, Felina is a nod to Marty Robbins’ ballad 'El Paso'. The song tells the story of a cowboy who returns to a town for the woman he loves, named Feleena, and dies in the end.
The series mirrors this same arc — Heisenberg returns to take revenge on Jack Welker’s gang, fully aware of how it might end for him. The song plays in the episode itself, and Walt even hums it while installing the automated machine gun in the trunk.

Felina as an Anagram
Second, Felina is an anagram of the word Finale. To make it work, the writers deliberately altered the spelling of the character’s name in the song from Feleena to Felina. This symbolic 'finale' serves as a concise conclusion to Walter White’s story — though not Jesse Pinkman’s. While working on the ending, the show’s creator already had in mind a mini-escape story for Jesse to Alaska, though he initially considered having him get caught.
Felina: Three Spoiler-Filled Chemical Elements
And finally, Felina can be decoded as a combination of chemical elements:
Fe — iron (symbolizing blood),
Li — lithium (present in Walter’s 'cook'),
Na — sodium (a component of tears shed by those close to Heisenberg).

That’s why many fans interpret the title as a metaphor for the series finale: blood, crystals, and tears — the three main elements of Heisenberg’s life and death.