I think Simba would still feel guilt and somewhat haunted by his uncle's death, despite all the wrong Scar cause him, his family and the Pridelands. Sometimes he would have bad dreams, and this is what this drawing is about. Meep, sorry about getting somewhat dark about this!
What is this? Some Lion King fanart? *gasp* But it's been years! YEARS
Indeed, it has, but for some reason I was compelled to draw something in relation to TLK tonight. And I did so with no references, so I'm surprised I managed to remember the designs well enough to be recognisable.