That scene used to scare me as a kid. Of course, my interpretation is subjective. What I take from this scene, is that Death surrounds us all, like the very buildings around us. The most objective thing I take away from these few seconds is that the bricks, are the souls/ dead people Death has collected. Soon as the 2 homies pass, the face emerges... as if they are adding to the inevitable collection of souls that make up the after life/ bricks that create a building. These bricks are also (obv I know lol) close together... Kinda hints that the after life promises unity. Last bullshit thing while im trying to think for myself lol, death is death, a brick is a brick, none of us are greater than the bigger picture. It is when we are all together do we create a meaningful formation (building example). Always wondered about it myself.