I guess in my mind it came out to be that the ground he's on is falling apart, like how his world just collapsed when Mufasa died. And if you look to the right, I tried to make a glowy-rememberance-thinger of a flashback to Simba finding the dead Mufasa. And then of course there's the ghost Mufasa's leg to the left that's trying to wake Simba up from the nightmare.
Don't worry, I can't shadoe either. 
)