A girl will always remember her first existential crisis. You may be looking in the mirror and grow defamiliarized with your own face, and it occurs to you that you occupy your body. You may be staring at the stars and thinking "We're really not alone, are we?" You may be in the middle of a bespoke dance number with your girlfriends in your dream house and suddenly ask "Do you guys ever think about dying?" It happens to everyone sooner or later.
They can pop up at the most inconvenient times. Sometimes you just want to sit and watch a movie with your friends and not think about how strange it is that we sit quietly in the dark to look at moving images that reflect our own experience. But you can't help it when the absurdity strikes. You can only ride the wave until your awareness eventually dims and you can go back to playing Flappy Bird. Or look at these memes that understand what you're going through.
