I'm going back to the bungalow. Here is my gun. Have fun.
This scene is significant because it is what led to Mersualt being put in jail. Ultimately leading to the verdict of being executed.
This is a gun.
It is hot
It doesn't matter that your dead, everyone dies at some point. It's only matter of when... Meursault knew that all he had to do was turn around and the situation would be over, but the beating of the sun's rays kept making him move forward even though moving forward made no difference. This shows how little care Meursault has.