When you see others happy when you can only be sad.
When your sister gets all the praise.
When you're a disappointment to your whole family.
That's how you know you're empty.
When you have no tears left to cry.
When you're too depressed to roll out of bed and start the day.
When you feel like you don't need to be a part of the mortal world any longer.
That's how you know you're empty