question about the background of recent chapters

[Digitalritual]

I was wondering why, in the past few chapters, there's floating rocks/boulders around Naruto, Gai, Kakashi & Tobi? i know they must be from an explosion, but why are they still there?

 

[Simple Math]

probably mean something

 

[Joten Uchiha]

To symbolise the clash of power that's about to take place, a lot of artists do this in their drawings.

 

[Mugen Tsukyomi]

Probably obito is viewing those boulders and os traumatized as f lol

 

[gordo1]

It symbolizes the power of the fighters, DBZ did it a lot.

 

[Uxellius]

Hmm ... I think because there're a lot of strong chakras around ... Kinda reminds me of DBZ