What did the burning bush have to do with things in reality?

I'm not sure what you mean by "in reality". But if one looks at the story of Moses' encounter with God, some symbolism used by the writer is apparent. The most evident is the mountain setting. That is where most encounters with things divine occur when new ideads are being intoduced, and is used again in the Sermon on the Mount.

The burning bush is unconsumed we learn. What the significance of this is is open to interpretation I assume, along with a piece of scrub brush. The use of fire to represent the Holy Spirit was used by Jesus in baptism, and is a symbol used by Pentecostalists today. Perhaps it hints at the refinement or change in nature which occurs when subjected to the flames?

good beginning, tycoon thanks

it laid the foundations of future bushisms.

Dammit, Brahmin...you beat me to it.

Now I gotta think of something else.

I wonder if I should post something serious.

One of the most important aspects of this Moses thing...is that it supposedly is taking place out in the desert...among a group of people who just escaped from Egypt.

They essentially had nothing but the clothes on their backs.

But it is obvious that "the god" is talking to a functioning society...complete with slaves and governments.

It is so obviously nonsense...it boggles the mind that modern folks buy into it.

The bush is burning at 34% approval rating.

I will have to issue you this fine for that... joke.

I have doffed my shoes but would like to keep my clothes on.