What’s the significance of the burning bush in BM?

I listened to a Joe Rogan podcast featuring Quentin Tarantino and Roger Avery and on it they were discussing the writing process and how characters can develop backstories or something like that. For some reason, as I was listening, I remembered the strange scene in BM, where the kid comes across a burning bush in the desert.

I remember reading that the kid had “traveled far to get here” which I took to mean that there was a deeper symbolic meaning that we don’t know about, regardless of the biblical connotation and the temporary truce between the animals also watching the fire.

Does anybody have an interpretation on what this scene signifies about the kid’s inner life or his past? Just curious what y’all think.