The song "Pastillas Para No Soñar" by Joan Manuel Serrat & Joaquín Sabina talks about the pursuit of a long and safe life. The lyrics suggest that if you want to live a hundred years, you should avoid indulging in pleasures, protect yourself from heartbreaks, follow the rules, and maintain a healthy lifestyle. The song advises against taking risks and making impulsive decisions that may lead to disappointment or failure. It suggests wearing a gas mask to protect yourself from the outside world and avoiding situations that could challenge your sense of security. The lyrics also mention the importance of physical fitness and grooming, as well as avoiding the influence of freedom and living within the boundaries of societal norms. It emphasizes the need to reduce exposure to harmful substances and substances that could affect one's health. The song urges listeners to resist temptation, distance themselves from love or emotional attachments, and seek pharmaceutical solutions if the heart protests. It suggests asking the pharmacist for pills that can stop dreaming, indicating a desire to escape from the uncertainties and risks that come with pursuing dreams and desires. Overall, "Pastillas Para No Soñar" is a cautionary song that illustrates the trade-offs and sacrifices one may have to make to lead a long, safe, and predictable life. It highlights the conflict between the desire for longevity and the urge to live life to its fullest.