It shows that guys go through rough things in their lives, too. We're not invincible, and we're not stone. We've got those little 'masks' that hide our true feelings, and hide any sign of it.
I'll point out the things I definitely can relate to: Alcohol, Broken Family, Broken Friends, Have been hurt, Watched my Mom get strangled, Piece of Shit, no expert at love.
This picture is just seriously amazing.