sleep
Explanation
This comic features a conversation between a person and God about the purpose of sleep and dreams. The person asks: "God, why do we have sleep and dreams?" God answers: "Because real life is too intense."
God then elaborates in an increasingly frantic description of waking life: being alternately chased by velociraptors, having sex with celebrities, losing teeth, standing naked in classrooms, flying, drowning, having teeth fall out -- all things that are, of course, actually typical dream experiences, not waking experiences. God describes real life as "so scary and uncanny."
The person is confused, and God continues: every day you wake up in a world where "all reality and beauty and the last wisp of grace and time obey their rules while the ground stays beneath you, and each minute by minute is minute for minute."
The joke inverts reality and dreaming entirely. God has mixed up which is which -- describing the surreal, chaotic content of dreams as if it were "real life," and describing the stable, predictable nature of waking reality as the strange respite we need from it. The final panels push the absurdity further when the person says "Are you fucking with me, God? I can't--" and God responds that in a few seconds, "you're going to wake up in a place that is boring and confused."
The comic plays with the genuinely philosophical question of why consciousness needs a nightly period of bizarre hallucinations. By having God confuse dreams and reality, it subtly suggests that from a cosmic perspective, the mundane predictability of waking life might actually be the weirder phenomenon -- a world where physics consistently works and nothing surreal happens is, if you think about it, a very strange place to spend most of your existence.