depression is my worst nightmare. it is nothing but that. no hope. no light, no energy, just nothing. and in the future, nothing.
you can't wait to go to sleep for the unconciousness. when you wake up you think "oh god, this again?" and you wish you could sleep for the rest of your life until you die.
but it does pass... it takes a while, but despite how it's making you feel, there IS an end to it.