He falls to his knees and starts sobbing.

from Breaking Bad (Ft. Moira Walley-Beckett & Rian Johnson) – Ozymandias on Rap Genius

Meaning

There were many parallels throughout the last season between Gus and Walt. In this instance, the way Walt falls to the ground is identical to the way Gus fell to the ground when Max Arciniega was shot. Hank was Walt’s brother-in-law and Gus and Max were sort of brothers.

Rian Johnson on the parallel between Walt and Gus

That was not intentional at all. When I saw that I was like, “Oh my God, that’s awesome.” No, this is just the one way to shoot a guy who’s down on the ground. It might very well have been intentional on the writer’s part. But for me I wasn’t referencing that shot at all

That’s actually a rig that the effects guys came up with that his head goes down onto. When we were out scouting, I had that poem in my head and I just thought about the shattered visage and the sand and I looked down when we got out of the bus when we were scouting and the way the sand kind of cracked when I put my foot on it. I actually called the guys over and we took pictures of it and were like could we duplicate this when Walt goes down in the sand? And the effects guys made this rig, which it’s actually this plate that they buried into the ground there that has this pneumatic thing and it has these wood pieces cut out in it and then they layered dust over that and then when his head hit they triggered it so the pieces all jangled and the cracks were revealed and little puffs of dust came up.
-Rian Johnson

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