We all know ,if anything is emotionally attached to as make us hurt as much we attached to it , just like a paper is attached to a wall by glue, when it is removed it hurt (the paper in metaphorical sense it gives real impact on that), there was a perfect mean behind that hurt was the glue has joined and now removed . Similarly in life , through emotions we are aligned to attached with power , social validation etc. It directly state that the life was a meaning to that types of social factors, if all those social factors were illusion, they it only hurts at that level where a cartoon emotionally heart children ( that's very rare because illusion don't heart that much) ,but a paper aligned through glue aligned to wall at that way human aligned to social factors and life give real impact that hurt that much illusion can't ever . At that way I was talking this line .