The act of getting your hands dirty and and stretching your body from limb to limb to create a life sized piece of artwork is so inspiring.
I've experienced this practice when I've painted 8.5x4.5inch paintings for an exhibit a few years back. I'd lay on the floor, against the paper, and slowly move from each corner to the next to saturate the paper with paint.
To have a large piece of artwork completed and covering the majority (if not all) of a wall in one room is breathtaking. See more artists creating here.