Continuity mistake: At the beginning of the episode Jesse and Jane leave the art gallery and go to his car. From the outside, Jesse's car is right up close to the Porsche in front, but the inside shots show they are about 4-5 feet back from it.
Continuity mistake: In the car driving after seeing Saul, Skyler tells Walt "This is what happens when you decide to pay the bills with drug money" The shot from behind shows Walt's head completely in the shadows. When it cuts to a closer angle, suddenly he has light around his head and part of his neck with only a small shadow cast on him.
Continuity mistake: When Jesse and Andrea are making out on the couch, they discuss having a bear. And she mentions she's cleaned out of anything else. During this sentence, they are positioned where Jesse is leaning forward looking down at her. But mid sentence there is a cut, and suddenly he's leaning his head back with her looking down at him.
Chosen answer: It is part of the ritual for la Santa Muerte. It is a sign of humility and sacrifice.
djm