Why did BRIAN described the moose attack as " insane" in the book called HATCHET​

Brian finds the moose attack to be "insane" and "madness." He seeks rationality in the act, and attempts to make sense of the moose's motives.

it is the background information on the characters and setting explained at the beginning of the story. the exposition will often have information about events that happened before the story began. the exposition is often the very first part of the plot.

dont know what all this is english this is america.