You know when you're like crying and you close your eyes very hard, thinking that if you do so you will suddenly disappear, and that even though you're not physically there, you can still take a look at absolutely everything, like you were a ghost or something. When you wish very bad to become invisible, and not just thanks to the Invisibility Cloak.
But then you just open your eyes, and you're still there, still crying like a baby.
And you try to close them once more, and you can even imagine the sound of yourself disappearing, like a "POOF" or something. But that's when you realize it's not going to happen, and you then wish you could go back in time, somewhere back in time when THAT moment was not even close to existing. And then you think "Fuck you, destiny!" And you remember Jack and Locke back there in the island, and then think again "This was meant to be." Still, you wish for that not to have existed, for you not to have suffered all that pain. For you not to suffer anymore.
And then of course you realize it's been like half an hour of you sitting on the bathroom toilette and someone from the outside is shouting at you "Hey! Get out of there! I need to use the bathroom, you moron!"