My Hypothesis: Imagine yourself dead and you woke up in your grave and realize all that and then you're a wee bit comfy that this is your Safety Coffin and You're prematurely Buried and then you hit the distress bell panic button but they deliberatly ignore it. And, you'd hear 'em laugh and ridicule you and all that...and you realize that you're nowhere but just a few feet under the ground in your own home.