One of my favorite passages from Lestat is prior to his change when he has a panic attack, literally, and experiences an Existential crisis. It's hilarious and I always laugh out loud. I have previously posted this. I love it.

“I realized aloud in the midst of saying it that even when we die we probably don't find the answer as to why we were ever alive. [...] Do you realize that! We'll never know why the hell any of it happened, not even when it's over! We're going to die and not even know. We'll never know, and all this meaningless will just go on and on and on. And we won't any longer be witnesses to it. We won't have even that little bit of power to give meaning to it in our minds. We'll just be gone, dead, dead, dead, without ever knowing.”

                                          — The Vampire Lestat

                                                (Anne Rice)