The 'A Soul for a Soul' meme originates from the 2018 blockbuster film Avengers: Infinity War, spoken by the Red Skull to Thanos on the planet Vormir. The line refers to the heavy price required to obtain the Soul Stone—the sacrifice of a loved one. On the internet, the template evolved into a relatable commentary on unfair or extreme trade-offs in everyday life. Users often pair the quote with humorous captions about spending excessive money for a small dopamine hit, sacrificing physical health for hobbies, or any situation where a significant loss is exchanged for a perceived gain. Its popularity endures due to the dramatic weight of the original scene contrasted with the often trivial nature of modern internet problems.